Redmine

Hi.
After update from 2.4.2 to 3.3.1 we lost ability to autogenerate issue comment and corresponding mail notification without changing issue status.
I have a keyword to modify issue status mod (In work, already activated for issue), that adds a issue comment with reference to SVN revision automatically in version 2.4.2.
After update, it works differently - commit shows in tight block, but no comments issue.

How can i modify system code to get habitual system behavior?

System overviewSystem overview