Redmine

Hello,

we are using

Environment:
  Redmine version                4.0.4.stable
  Ruby version                   2.5.5-p157 (2019-03-15) [x64-mingw32]
  Rails version                  5.2.3
  Environment                    production
  Database adapter               Mysql2
  Mailer queue                   ActiveJob::QueueAdapters::AsyncAdapter
  Mailer delivery                smtp

1. I had an issue, created by me, user A, assigned to user B
2. This user then assigned it back to me
3. I added a comment and assigned it to user C.

I expected, that about this 3. action, user B would have been notified, because previously it was assigned to him. I think this was meant by "Involved in".
But he said, he didn't get an e-mail notification.

The user said to me, that his mail option is "Only for things I watch or I'm involved in".
Other notifications about issues which are directly assigned to him work well.

This behaviour was already described and fixed in #26627. Is it possible, that it was reintroduced in version 4.0.x ?

Best regards
Daniel