Model a subprocess with a compensation boundary event. Add a throwing compensation event after the subprocess that references the subprocess via activityRef.

Expected behavior:
The compensation handler attached to the boundary is invoked

Current behavior:
Nothing happens

Reason
There seems to be no compensation event subscription in this case.

Test case:
https://github.com/camunda/camunda-bpm-platform/commit/aa7205fc709438f994d429164ad406114e737d89