Fix "Changing owner name crashes the application"

CHANGELOG.md

@@ -45,6 +45,7 @@ Note that this project **does not** adhere to [Semantic Versioning](https://semv
 - We fixed an issue where the preview panel showing the wrong entry (an entry that is not selected in the entry table). [#9172](https://github.com/JabRef/jabref/issues/9172)
 - We fixed an issue where HTML-reserved characters like '&' and '<', in addition to HTML entities like '&amp;' were not rendered correctly in entry preview. [#10677](https://github.com/JabRef/jabref/issues/10677)
 - The last page of a PDF is now indexed by the full text search. [#10193](https://github.com/JabRef/jabref/issues/10193)
+- The default owner of an entry can be changed again. [#10924](https://github.com/JabRef/jabref/issues/10924)
 - We fixed an issue where the duplicate check did not take umlauts or other LaTeX-encoded characters into account. [#10744](https://github.com/JabRef/jabref/pull/10744)
 - We fixed the colors of the icon on hover for unset special fields. [#10431](https://github.com/JabRef/jabref/issues/10431)
 - We fixed an issue where the CrossRef field did not work if autocompletion was disabled [#8145](https://github.com/JabRef/jabref/issues/8145)

src/main/java/org/jabref/preferences/FilePreferences.java

@@ -71,6 +71,10 @@ public String getUserAndHost() {
         return userAndHost.getValue();
     }
 
+    public StringProperty getUserAndHostProperty() {
+        return userAndHost;
+    }
+
     public Optional<Path> getMainFileDirectory() {
         if (StringUtil.isBlank(mainFileDirectory.getValue())) {
             return Optional.empty();

src/main/java/org/jabref/preferences/InternalPreferences.java

@@ -71,6 +71,10 @@ public String getUserAndHost() {
         return userAndHost.get();
     }
 
+    public StringProperty getUserAndHostProperty() {
+        return userAndHost;
+    }
+
     public boolean isMemoryStickMode() {
         return memoryStickMode.get();
     }

src/main/java/org/jabref/preferences/JabRefPreferences.java

@@ -1406,8 +1406,9 @@ public OwnerPreferences getOwnerPreferences() {
             put(DEFAULT_OWNER, newValue);
             // trigger re-determination of userAndHost and the dependent preferences
             userAndHost = null;
-            filePreferences = null;
-            internalPreferences = null;
+
+            // this propagates down to filePreferences
+            getInternalPreferences().getUserAndHostProperty().setValue(newValue);
         });
         EasyBind.listen(ownerPreferences.overwriteOwnerProperty(), (obs, oldValue, newValue) -> putBoolean(OVERWRITE_OWNER, newValue));
 
@@ -2205,6 +2206,7 @@ public FilePreferences getFilePreferences() {
                 getBoolean(CONFIRM_LINKED_FILE_DELETE),
                 getBoolean(TRASH_INSTEAD_OF_DELETE));
 
+        EasyBind.listen(getInternalPreferences().getUserAndHostProperty(), (obs, oldValue, newValue) -> filePreferences.getUserAndHostProperty().setValue(newValue));
         EasyBind.listen(filePreferences.mainFileDirectoryProperty(), (obs, oldValue, newValue) -> put(MAIN_FILE_DIRECTORY, newValue));
         EasyBind.listen(filePreferences.storeFilesRelativeToBibFileProperty(), (obs, oldValue, newValue) -> putBoolean(STORE_RELATIVE_TO_BIB, newValue));
         EasyBind.listen(filePreferences.fileNamePatternProperty(), (obs, oldValue, newValue) -> put(IMPORT_FILENAMEPATTERN, newValue));