Uncaught TypeError: formActions is null on a form that is trying not to use Gin form modifications

The reason this is getting applied when it is not expected is because the base form is a node form and so the condition $form_state->getBuildInfo()['base_form_id'] ?? NULL) === 'node_form' (line 375 of src/GinContentFormHelper.php) is evaluating to true.

The reason we cannot opt out of it is because the $form_ids_to_ignore (line 335 of src/GinContentFormHelper.php) is hard-coded, with no alter hook.

Given this is a pretty custom one-off case i'm not sure we should look more into automatically ensuring this does not apply when it might break things, but it seems that might be possible (check for edit_actions somewhere)?

Ah but excluding the form means the buttons do not show up at all.

Seems that the modifying/placing and the removing should be handled in one spot.

Changing this to a feature request, since as covered above we can avoid this error if we can exclude custom (but content-extending) forms from Gin's enhancement of content forms.

Note that the ability to exclude by route will not help because the check for base_form_id, while mixed in with the check for routes, is independent and if it returns true the enhancements get applied.

Also, even where restricting by route can work, the route as in the example is for all entities of a type, so for all nodes, not by content type, so in many cases definitely too broad.

Allowing the $form_ids_to_ignore variable to be modified by third-parties (the same way routes already can be, in the same method) seems a very straightforward improvement.

Merge request forthcoming.

@mlncn We're currently working on 📌 Improve sticky actions implementation Active and with the latest version of the MR!536 the javascript error in the IS should be gone. Would you mind giving that a try and letting us know if that's true?

If not, please help us to find out what's still wrong with that, as we need to iron that out before we start looking into form_ids_to_ignore and route_names in the \Drupal\gin\GinContentFormHelper::isContentForm.