DRAFT: Only update source element in case of actual changes

src/core/js/ext_editmode_wysiwyg_text.js

@@ -63,8 +63,14 @@ 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(editor.getData());
+                // console.log(editor.sourceElement.value);
+                console.log(editor.getData() != editor.sourceElement.value);
+                if (editor.getData() != editor.sourceElement.value) {
                     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? The following doesn't