Well, I did some more tests and there is something going on here…
Steps to reproduce:
– Fresh install WordPress 5.0.1
– Add plugin ACF 5.8.0-beta3
– Create field group with test field
– New post: type some title and some post content. Type something in test field.
– Save as draft.
– Leave the page.
– The alert comes up.
If the post is published and updated all fine. The alert comes up when the post status is draft.
