DRAFT: Add debug output and todo

src/core/js/ext_editmode_wysiwyg_text.js

@@ -63,8 +63,11 @@ var ext_editmode_wysiwyg_text = function ($, logger, ClassicEditor, edit_mode, g
             // Manually implement saving the data since edit mode is not
             // a form to be submitted.
             editor.model.document.on("change:data", (e) => {
+                console.log("Saving editor...");
                 editor.updateSourceElement();
             });
+            // TODO(fspreck): Add an event listener to save also changes made in
+            // source mode. What event can we listen to?
         } catch (error) {
             logger.error(error.stack);
         }