Disable the 'Remove' button if there is a single row in the allowed values storage setting of the list fields

Looks good 👍. Needs work for two small nits.

Works fine! The test fail seems unrelated.

Marking as RTBC.

Setting the button as disabled in this situation is an improvement, already as it is. So +1 for getting this in.

But it would be great if we could come up with a pattern that gives more context/feedback to the user about the "why" that button is disabled. My first thought was using the title attribute with something like "Mandatory value not removable". But title won't show up on hover if the button is disabled, plus I'm not sure it's a right use of it. Maybe, as @lauriii suggested, this could be a nice use of the Tooltip once that's in?

lauriii → closed merge request !4633

Committed 2b9d2a9 and pushed to 11.x. Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.