Steps to re-produce:
Setup Jira & Bitbucket server integration
Add a trigger to your workflow transition to move an issue when a branch is created
Configure an automation rule listening for issue transitions
Go to an issue and create a branch via development tools
Result: The automation rule doesn't get triggered since no issue transitioned event is fired by Jira.
Workaround: Setup an issue property updated trigger listening for changes to the automatic_transition_events_history property