T30444-Crash_when_working_with_labels
Summary:
Changed return of GetLabel() to ensure secure usage of method with auto.
Secured usage of GetLabel results to ensure that not nullptr access is done.
Test Plan: code review; test an try to crash it.
Reviewers: O3 MITK Reviewer Group II, O1 MITK Reviewer Group I, kislinsk
Reviewed By: O3 MITK Reviewer Group II, O1 MITK Reviewer Group I, kislinsk
Subscribers: kislinsk
Maniphest Tasks: T30444
Differential Revision: https://phabricator.mitk.org/D953