Fixed tests failing due to merge: Merged revision(s) 10302-10450 from branches/1300: ........ Introduced PerformWithoutChangingActiveContent method in AvalonDockViewHost ........ Removed "selection guards" from legend views ........ Removed "selection guards" from other selection providers ........ Changed selection provider logic in GuiCore ........ Slightly improved AvalonDockViewHost ........ Reverted some changes ........ Ensured chart legend view is updated after opening chart view ........ Ensured map legend view is updated after opening map view ........ Improved ChartPlugin and MapPlugin when it comes to removing outdated legend content ........ Applied additional fix when it comes to selection mechanism ........ Improved GuiCore logic so that only selection coming from document views is unsubscribed when activating a view that is no selection provider ........ Related to Issue [WTI-1300]