[FIX] web_editor: no premature saving of article

Issue:
Articles were erroneously marked as changed,
leading to unnecessary autosaves. Part of this was
caused by the inclusion of history IDs in the
content comparison process, which differ even
without substantive content changes.

Solution:
Applied `stripHistoryIds` to the content obtained
from the WYSIWYG editor before performing the
dirty check. This ensures that comparisons focus
solely on actual content changes, eliminating
history IDs as a factor in the dirty state
determination.

opw-3707380

closes odoo/odoo#154068

Related: odoo/enterprise#56626
Signed-off-by: Nicolas Bayet (nby) <nby@odoo.com>

addons/web_editor/static/src/js/backend/html_field.js

@@ -441,7 +441,7 @@ export class HtmlField extends Component {
             div.style.display = 'none';
             div.append(editable);
             document.body.append(div);
-            const editableValue = this.wysiwyg.getValue({ $layout: $(editable) });
+            const editableValue = stripHistoryIds(this.wysiwyg.getValue({ $layout: $(editable) }));
             div.remove();
             parsedPreviousValue = domParser.parseFromString(editableValue, 'text/html').body;
         } else {