Submit button missing on Mailchimp authentication form

This may warrant a change in the Mailchimp module, but I am concerned if many contrib modules will require an update to work at all, that we need a generic solution.

We've seen a few edge cases in the last 18 months when we had to add special cases for sticky action buttons. Maybe this is another one. I can have a look, potentially Friday. I wouldn't be too worries about a wider impact, as we have addressed this in general and sometimes specifically.

OK, sounds good. Glad to hear that it is marginal.

Unfortunately, we can't add a workaround for this in Gin. The action button in Mailchimp is not done in a way that matches conventions that are used in Core and most contrib: the submit button needs to be of type submit and should be a child of $form['actions']. I'm moving this to the mailchimp project and propose the fix in an MR.

Hi @jurgenhaas,
I was able to reproduce this issue and after the MR the issue is resolved.
Attaching ss for reference.
Hence moving it to RTBC.

Thanks,
Arun

Thanks @jurgenhaas and @arunsahijpal!