M4: a pop-up lists a comment's text replies, not its status or checkmark replies (#2137)

The pop-up's reply list kept every annotation in reply to the comment,
so a review status (/StateModel /Review) and the private checkmark reply
Mark writes (/StateModel /Marked) showed as replies with their generated
text. It now lists replies without a /State, as the Comments panel does
(comments_panel.rs).

Raised by CodeRabbit on #2137.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01R3niW7kVeT8mi7TpWc8eAJ

crates/ui-egui/src/tools/comments/popups.rs

@@ -167,9 +167,14 @@ pub(crate) fn popups(ctx: &egui::Context, view: &mut DocView, info: &DocInfo, hi
                         } else {
                             ui.label(a.contents.as_deref().unwrap_or_default());
                         }
-                        // Replies, as the thread reads.
-                        let replies: Vec<&Annotation> =
-                            info.annotations.iter().filter(|r| r.page == page && r.in_reply_to.is_some() && r.in_reply_to == a.name).collect();
+                        // Replies, as the thread reads: text replies only, as in the Comments
+                        // panel. A review status or a checkmark (`/State`) is a reply too, but
+                        // not one to read here.
+                        let replies: Vec<&Annotation> = info
+                            .annotations
+                            .iter()
+                            .filter(|r| r.page == page && r.in_reply_to.is_some() && r.in_reply_to == a.name && r.state.is_none())
+                            .collect();
                         for r in replies {
                             ui.add_space(4.0);
                             ui.horizontal_wrapped(|ui| {

crates/ui-egui/tests/it/comments.rs

@@ -3063,6 +3063,34 @@ trailer << /Root 1 0 R >>
     assert_eq!(note.popup.map(|p| p.open), Some(false), "closed");
 }
 
+/// #2137 review: a pop-up lists the comment's text replies only, as the Comments panel does. A
+/// review status (`/StateModel /Review`) and a checkmark (`/StateModel /Marked`, the private
+/// reply Mark writes) are replies too, but not ones to read in the thread.
+#[test]
+fn a_pop_up_lists_text_replies_but_not_status_or_checkmark_replies() {
+    let pdf = b"%PDF-1.7
+1 0 obj << /Type /Catalog /Pages 2 0 R >> endobj
+2 0 obj << /Type /Pages /Kids [3 0 R] /Count 1 >> endobj
+3 0 obj << /Type /Page /Parent 2 0 R /MediaBox [0 0 300 200] /Annots [4 0 R 5 0 R 6 0 R 7 0 R 8 0 R] >> endobj
+4 0 obj << /Type /Annot /Subtype /Text /Rect [20 150 40 170] /T (Ada) /NM (note-1) /Contents (Please check) /Popup 5 0 R >> endobj
+5 0 obj << /Type /Annot /Subtype /Popup /Parent 4 0 R /Rect [60 40 260 160] /Open true >> endobj
+6 0 obj << /Type /Annot /Subtype /Text /Rect [20 150 40 170] /F 32 /T (Bob) /NM (reply-1) /IRT 4 0 R /Contents (Agreed with this) >> endobj
+7 0 obj << /Type /Annot /Subtype /Text /Rect [20 150 40 170] /F 32 /T (Bob) /NM (reply-2) /IRT 4 0 R /State /Accepted /StateModel /Review /Contents (Accepted set by Bob) >> endobj
+8 0 obj << /Type /Annot /Subtype /Text /Rect [20 150 40 170] /F 32 /T (Ada) /NM (reply-3) /IRT 4 0 R /State /Marked /StateModel /Marked /Contents (Marked set by Ada) >> endobj
+trailer << /Root 1 0 R >>
+%%EOF";
+    let mut h = harness(move |app| {
+        app.open_bytes("thread.pdf", None, pdf.to_vec()).expect("opens");
+        app.close_tab(0);
+    });
+    h.run_steps(6);
+    let (_, window) = h.state().views[0].comments.popup_rects.first().copied().expect("the open pop-up shows");
+    let in_window = |label: &str| h.query_all_by_label(label).any(|n| window.contains(n.rect().center()));
+    assert!(in_window("Agreed with this"), "the text reply");
+    assert!(!in_window("Accepted set by Bob"), "not the review status");
+    assert!(!in_window("Marked set by Ada"), "not the checkmark");
+}
+
 /// A double-click on a sticky note opens its pop-up window on the page, where its text is read
 /// and edited; the title bar drags it (saved as the pop-up's place, one undo step); × closes it
 /// (comment.popups, comment.connector-lines).