Description of problem:
I have a process that has catching intermediate event (aka boundary event) attached to a node (e.g. task, subprocess). When I move the "attached-to" node for [X,Y] pixels, boundary event position is reset to [X,Y] relative to canvas top-left corner.

Version-Release number of selected component (if applicable):
6.1.3.CR

How reproducible:
-

Steps to Reproduce:
1. Open attached process, move the large manual task node.

Actual results:
All boundary event will move in the same direction but starting from canvas top-left corner.

Expected results:
Attached boundary events should keep their position relative to the node they are attached to.

Additional info: