AJAX handler problems with the Gin admin theme

We have seen issues like that before in Gin, I suppose it's more of a Gin issue, though. But I need to do some more research before I can be certain.

I have checked this issue — it works as expected in the Claro theme. However, the issue only occurs when using the Gin theme.

Confirmed, this can be reproduced, and it's an issue with the sticky action items in Gin, which is why I'm moving it over there.

The problem is that not only action buttons go into the sticky bar, but also the status field. Now, if the entity form has an ajax handler in one of the fields, the form gets rebuilt. This updates all the action buttons but not the status field, and potentially others that went into the sticky bar. That's why the value of that field is then submitted as empty, and for a boolean field this is the equivalent to FALSE.