This is a 72x-only bug because the related soy changes were removed in 73x+ with the inclusion of
72x uses the SegmentsExperienceSelector.es.js file whereas 73x+ uses view_toolbar.jsp. Also, the logic for 73x+ results in the Publish button always being enabled, even when the user hasn't yet interacted with the page.
1. Create a content page, add a paragraph fragment and publish.
2. Edit the page
3. Add an experience
Expected Result: The "Publish" and "Discard Draft" buttons are enabled to allow for saving or discarding the changes.
Actual Results: Both buttons are disabled.
Not Reproduced: master hash: 167f47e46c2ea38101a1cfbf6d2ba237e138b484
Reproduced: 72x hash: 0bea018e65080c69e399637672fc078e4478cff4