Ensure visibility in data based layout
Summary: Fixes T30449
Test Plan: Open MxN (and close Std) view, load multiple images, set all images invisible in the window (coupled / uncoupled should both work), then set a data-based layout. The respective image of each window should be visible there.
Reviewers: O3 MITK Reviewer Group II, kislinsk
Reviewed By: O3 MITK Reviewer Group II, kislinsk
Maniphest Tasks: T30449
Differential Revision: https://phabricator.mitk.org/D958