Don't get the text content for an annotation when /NeedAppearances is…

… true (bug 1844583)

When the flag is set, the appearance has to be generated from the value so it's
useless/meaningless to extract the content from the existing appearance.

src/core/annotation.js

@@ -2572,7 +2572,7 @@ class TextWidgetAnnotation extends WidgetAnnotation {
   }
 
   get hasTextContent() {
-    return !!this.appearance;
+    return !!this.appearance && !this._needAppearances;
   }
 
   _getCombAppearance(

test/integration/annotation_spec.js

@@ -508,4 +508,32 @@ describe("ResetForm action", () => {
       });
     });
   });
+
+  describe("Don't use AP when /NeedAppearances is true", () => {
+    describe("bug1844583.pdf", () => {
+      let pages;
+
+      beforeAll(async () => {
+        pages = await loadAndWait(
+          "bug1844583.pdf",
+          "[data-annotation-id='8R']"
+        );
+      });
+
+      afterAll(async () => {
+        await closePages(pages);
+      });
+
+      it("must check the content of the text field", async () => {
+        await Promise.all(
+          pages.map(async ([browserName, page]) => {
+            const text = await page.$eval(getSelector("8R"), el => el.value);
+            expect(text)
+              .withContext(`In ${browserName}`)
+              .toEqual("Hello World");
+          })
+        );
+      });
+    });
+  });
 });

test/pdfs/.gitignore

@@ -605,3 +605,4 @@
 !rotated_freetexts.pdf
 !issue16633.pdf
 !bug1844576.pdf
+!bug1844583.pdf