vboctor on master
Tag attach group action should … (compare)
composer installwould fix the problem.
After some testing with ticket workflow and digging in the database, I get to the following conclusions:
The combination of the above results in the following: if an unset custom date field (due to 2) must be displayed and is required, then it will be displayed empty (due to 3) but that empty value won't be allowed (due to 4). In that precise case, I think it would make sense to apply the default value regardless of the ticket state, before displaying the field.
I am of course willing to provide a patch.
Opinions / comments welcome.