If a timer is added as boundary event to a task which is in a subprocess, its bpmn2 tag is not changed from "bpmn2:intermediateCatchEvent" to "bpmn2:boundaryEvent", resulting in:

"Timer node 'timer' has no outgoing connection."

Steps to Reproduce:
1. Drag and drop a timer to a user task in a embedded subprocess
2. Save the process

Actual results:
The Problems tab show: ""Timer node 'timer' has no outgoing connection."
" - in source code is generated an intermediateCatchEvent

Expected results:
No errors. The code generated should be "bpmn2:boundaryEvent"