T30243 - Crash/Freeze when selection in DataManager is changed while MatchPoint controller is open
Summary: Fixed T30243
Test Plan: try the workflow described in the task. Should not crash anymore.
Reviewers: O3 MITK Reviewer Group II, kislinsk
Reviewed By: O3 MITK Reviewer Group II, kislinsk
Subscribers: kislinsk
Maniphest Tasks: T30243
Differential Revision: https://phabricator.mitk.org/D883