fix: clear search highlighting on Normal escape

tests/navigation.rs

@@ -120,6 +120,36 @@ fn wait_until(session: &mut EditorSession, ready: impl Fn(&EditorSession) -> boo
     }
 }
 
+#[test]
+fn normal_escape_hides_highlights_but_retains_search_and_rearms_star() {
+    let fixture = Fixture::new();
+    let mut editor = fixture.editor("cat cat");
+    keys(&mut editor, "*");
+    assert_eq!(editor.search_matches_on_row(0).count(), 2);
+    editor.handle(Input::Escape);
+    assert_eq!(editor.search_matches_on_row(0).count(), 0);
+    assert_eq!(editor.search_match(), None);
+    assert_eq!(editor.cursor(), Cursor::default());
+    keys(&mut editor, "*");
+    assert_eq!(editor.cursor(), Cursor::default());
+    assert_eq!(editor.search_matches_on_row(0).count(), 2);
+    keys(&mut editor, "*");
+    assert_eq!(editor.cursor(), Cursor { row: 0, column: 4 });
+    editor.handle(Input::Escape);
+    keys(&mut editor, "n");
+    assert_eq!(editor.cursor(), Cursor::default());
+    assert_eq!(editor.search_matches_on_row(0).count(), 2);
+    keys(&mut editor, "/missing");
+    editor.handle(Input::Escape);
+    assert_eq!(editor.search_matches_on_row(0).count(), 2);
+    editor.handle(Input::Escape);
+    editor.handle(Input::Char('/'));
+    editor.handle(Input::Enter);
+    assert_eq!(editor.cursor(), Cursor { row: 0, column: 4 });
+    assert_eq!(editor.search_matches_on_row(0).count(), 2);
+    assert!(!editor.dirty());
+}
+
 #[test]
 fn star_search_arms_without_moving_then_navigates_and_rearms_for_a_new_word_or_mode() {
     let fixture = Fixture::new();