False trigger for changing class

I have selected some text which is not changed but it triggers a change


I relaized that it happens because a change that happens in css class of the text:
while it is in page source code and not included in the text:
only the data-control-id value is changed :
<a <del>data-control-id="Aoizd+uA+0euGP+AsDE8Nw=="...

the “text” diff is the best view to understand what triggered an alert. can you share a screenshot of what changes are show in text diff? thanks!