Allow to remove values that weren't submitted

Patch with proposed changes.

That seems reasonable.
Committed your proposal.

From your point of view, is this a regression error? Or a feature request?

It would be nice if the linek shows automatically, when user enters some data in a time slot.OTOH, that might be a confusing UX.

johnv, I'm not sure cause this logic was explicitly predefined and maybe had some purpose I didn't meet in my project.

I also thought that the button label could be changed for something like "Remove" if the value is saved in the field and "Clear" for newly added/edited data.

In the past, I did change the caption, using as many Drupal core translations.
So it could be that I change 'Clear' to 'Remove'.
Indeed, 'Clear' better covers the functionality.

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