diff --git a/options/locale/locale_pt-PT.ini b/options/locale/locale_pt-PT.ini
index 64798d6d65260..4b7604a5cbb5b 100644
--- a/options/locale/locale_pt-PT.ini
+++ b/options/locale/locale_pt-PT.ini
@@ -763,6 +763,8 @@ manage_themes=Escolher o tema padrão
 manage_openid=Gerir endereços OpenID
 email_desc=O seu endereço de email principal irá ser usado para notificações, recuperação de senha e, desde que não esteja oculto, operações Git baseados na web.
 theme_desc=Este será o seu tema padrão em todo o sítio.
+theme_colorblindness_help=Suporte a temas para daltónicos
+theme_colorblindness_prompt=O Gitea acabou de obter alguns temas com suporte básico para daltónicos que têm apenas algumas cores definidas. O trabalho ainda está em andamento. Poderiam ser feitos mais melhoramentos se fossem definidas mais cores nos ficheiros CSS do tema.
 primary=Principal
 activated=Em uso
 requires_activation=Tem que ser habilitado
diff --git a/services/repository/commitstatus/commitstatus.go b/services/repository/commitstatus/commitstatus.go
index 8a62a603d4609..444ae04d0c228 100644
--- a/services/repository/commitstatus/commitstatus.go
+++ b/services/repository/commitstatus/commitstatus.go
@@ -38,12 +38,10 @@ func getCommitStatusCache(repoID int64, branchName string) *commitStatusCacheVal
 	if ok && statusStr != "" {
 		var cv commitStatusCacheValue
 		err := json.Unmarshal([]byte(statusStr), &cv)
-		if err == nil && cv.State != "" {
+		if err == nil {
 			return &cv
 		}
-		if err != nil {
-			log.Warn("getCommitStatusCache: json.Unmarshal failed: %v", err)
-		}
+		log.Warn("getCommitStatusCache: json.Unmarshal failed: %v", err)
 	}
 	return nil
 }
@@ -128,15 +126,22 @@ func CreateCommitStatus(ctx context.Context, repo *repo_model.Repository, creato
 // FindReposLastestCommitStatuses loading repository default branch latest combinded commit status with cache
 func FindReposLastestCommitStatuses(ctx context.Context, repos []*repo_model.Repository) ([]*git_model.CommitStatus, error) {
 	results := make([]*git_model.CommitStatus, len(repos))
+	allCached := true
 	for i, repo := range repos {
 		if cv := getCommitStatusCache(repo.ID, repo.DefaultBranch); cv != nil {
 			results[i] = &git_model.CommitStatus{
 				State:     api.CommitStatusState(cv.State),
 				TargetURL: cv.TargetURL,
 			}
+		} else {
+			allCached = false
 		}
 	}
 
+	if allCached {
+		return results, nil
+	}
+
 	// collect the latest commit of each repo
 	// at most there are dozens of repos (limited by MaxResponseItems), so it's not a big problem at the moment
 	repoBranchNames := make(map[int64]string, len(repos))
@@ -165,10 +170,10 @@ func FindReposLastestCommitStatuses(ctx context.Context, repos []*repo_model.Rep
 		for i, repo := range repos {
 			if repo.ID == summary.RepoID {
 				results[i] = summary
-				_ = slices.DeleteFunc(repoSHAs, func(repoSHA git_model.RepoSHA) bool {
+				repoSHAs = slices.DeleteFunc(repoSHAs, func(repoSHA git_model.RepoSHA) bool {
 					return repoSHA.RepoID == repo.ID
 				})
-				if results[i].State != "" {
+				if results[i] != nil {
 					if err := updateCommitStatusCache(repo.ID, repo.DefaultBranch, results[i].State, results[i].TargetURL); err != nil {
 						log.Error("updateCommitStatusCache[%d:%s] failed: %v", repo.ID, repo.DefaultBranch, err)
 					}
@@ -177,6 +182,9 @@ func FindReposLastestCommitStatuses(ctx context.Context, repos []*repo_model.Rep
 			}
 		}
 	}
+	if len(repoSHAs) == 0 {
+		return results, nil
+	}
 
 	// call the database O(1) times to get the commit statuses for all repos
 	repoToItsLatestCommitStatuses, err := git_model.GetLatestCommitStatusForPairs(ctx, repoSHAs)
@@ -187,7 +195,7 @@ func FindReposLastestCommitStatuses(ctx context.Context, repos []*repo_model.Rep
 	for i, repo := range repos {
 		if results[i] == nil {
 			results[i] = git_model.CalcCommitStatus(repoToItsLatestCommitStatuses[repo.ID])
-			if results[i].State != "" {
+			if results[i] != nil {
 				if err := updateCommitStatusCache(repo.ID, repo.DefaultBranch, results[i].State, results[i].TargetURL); err != nil {
 					log.Error("updateCommitStatusCache[%d:%s] failed: %v", repo.ID, repo.DefaultBranch, err)
 				}
diff --git a/templates/repo/view_list.tmpl b/templates/repo/view_list.tmpl
index fb257bd474cbb..7ec9acc84ecc1 100644
--- a/templates/repo/view_list.tmpl
+++ b/templates/repo/view_list.tmpl
@@ -68,6 +68,6 @@
 		{{end}}
 	</tbody>
 </table>
-{{if .ReadmeExist}}
+{{if and .ReadmeExist (or .IsMarkup .IsPlainText)}}
 	{{template "repo/view_file" .}}
 {{end}}
diff --git a/tests/integration/pull_compare_test.go b/tests/integration/pull_compare_test.go
index 5ce8ea3031e13..b814207b2fe22 100644
--- a/tests/integration/pull_compare_test.go
+++ b/tests/integration/pull_compare_test.go
@@ -5,8 +5,14 @@ package integration
 
 import (
 	"net/http"
+	"net/url"
 	"testing"
 
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	repo_service "code.gitea.io/gitea/services/repository"
 	"code.gitea.io/gitea/tests"
 
 	"github.com/stretchr/testify/assert"
@@ -32,4 +38,33 @@ func TestPullCompare(t *testing.T) {
 	doc := NewHTMLParser(t, resp.Body)
 	editButtonCount := doc.doc.Find(".diff-file-header-actions a[href*='/_edit/']").Length()
 	assert.Greater(t, editButtonCount, 0, "Expected to find a button to edit a file in the PR diff view but there were none")
+
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		defer tests.PrepareTestEnv(t)()
+
+		session := loginUser(t, "user1")
+		testRepoFork(t, session, "user2", "repo1", "user1", "repo1")
+		testCreateBranch(t, session, "user1", "repo1", "branch/master", "master1", http.StatusSeeOther)
+		testEditFile(t, session, "user1", "repo1", "master1", "README.md", "Hello, World (Edited)\n")
+		resp = testPullCreate(t, session, "user1", "repo1", false, "master", "master1", "This is a pull title")
+
+		// the max value on issue_index.yml for repo_id=1 is 5
+		req = NewRequest(t, "GET", "/user2/repo1/pulls/6/files")
+		resp = session.MakeRequest(t, req, http.StatusOK)
+		doc := NewHTMLParser(t, resp.Body)
+		editButtonCount := doc.doc.Find(".diff-file-header-actions a[href*='/_edit/']").Length()
+		assert.Greater(t, editButtonCount, 0, "Expected to find a button to edit a file in the PR diff view but there were none")
+
+		user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+		repoForked := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{OwnerName: "user1", Name: "repo1"})
+		// delete the head repository and revisit the PR diff view
+		err := repo_service.DeleteRepositoryDirectly(db.DefaultContext, user2, repoForked.ID)
+		assert.NoError(t, err)
+
+		req = NewRequest(t, "GET", "/user2/repo1/pulls/6/files")
+		resp = session.MakeRequest(t, req, http.StatusOK)
+		doc = NewHTMLParser(t, resp.Body)
+		editButtonCount = doc.doc.Find(".diff-file-header-actions a[href*='/_edit/']").Length()
+		assert.EqualValues(t, editButtonCount, 0, "Expected not to find a button to edit a file in the PR diff view because head repository has been deleted")
+	})
 }
diff --git a/web_src/css/modules/segment.css b/web_src/css/modules/segment.css
index bbd39c385fe83..994ac1779a289 100644
--- a/web_src/css/modules/segment.css
+++ b/web_src/css/modules/segment.css
@@ -151,6 +151,11 @@
   border-top: none;
 }
 
+.ui.attached.segment:has(+ .ui[class*="top attached"].header),
+.ui.attached.segment:last-child {
+  border-radius: 0 0 0.28571429rem 0.28571429rem;
+}
+
 .ui[class*="top attached"].segment {
   bottom: 0;
   margin-bottom: 0;