Change Details

Fix a TODO. Fix two bugs relating to preview window being shown when they should not. Avoid computing previews when they are hidden.

Fix a TODO. Fix two bugs relating to preview window being shown when they should not. Avoid computing previews when they are hidden. Bugs examples : {F6692838} {F6692837}

Fix a TODO. Fix two bugs relating to preview window being shown when they should not. Avoid computing previews when they are hidden. Bugs examples : {F6692838} {F6692837}