+++ This bug was initially created as a clone of Bug #1775864 +++

Description of problem:
In topology.
When you change drag operations using the shift button, the node should remain under the mouse however it is jumping back to an older position.

The same bug is causing at times the regroup operation when holding shift to not even start.

Version-Release number of selected component (if applicable):
4.3

How reproducible:
100%


Steps to Reproduce:
1. in topology start dragging a deployment config node
2. hold shift button and drag the node some more
3. release the shift button

Actual results:
When the shift button is released, the node jumps back to the position where the shift button was first pressed. Continuing to drag shows a disconnected gap between the mouse and the node


Expected results:
The node should remain under the mouse at all times.


Additional info:
This is related to a brand new feature ini 4.3.