HexEditor: Only mark window as modified when document is actually dirty

Author: https://github.com/nbvdkamp 🔰
Commit: 24f729d0ef
Pull-request: https://github.com/SerenityOS/serenity/pull/15160
Reviewed-by: https://github.com/linusg

Userland/Applications/HexEditor/HexEditorWidget.cpp

@@ -79,8 +79,8 @@ HexEditorWidget::HexEditorWidget()
         m_selecting_from_inspector = false;
     };
 
-    m_editor->on_change = [this] {
-        window()->set_modified(true);
+    m_editor->on_change = [this](bool is_document_dirty) {
+        window()->set_modified(is_document_dirty);
     };
 
     m_search_results->set_activates_on_selection(true);