cubicweb-tracker #2772256 actions: limit the "move to version" action to one-ticket rsets [rejected]

If we don't do that, the actions tab in the version view (new from cubicweb 3.16) will exhibit weird things like 0.8.0, 1.1.2 and people may click on that without understanding all the consequences and drama will ensue.

Since the table actions don't support submenus I propose we limit this action to single tickets.

done in1.12.0
load left0.000
closed by<not specified>
patch[views/ticket actions] limit "move to version" action to individual tickets (closes #2772256) [rejected]