I have reviewed each change carefully, but it is a large change and I could have missed something! Here is a summary of the types of changes in this CL:
* Made nullptr checks consistent (the plurality of the changes are of this type)
* Completed switch statements (IE, switch did not explicitly handle default case, but had unhandled enum entries - this is the second most popular type of fix)
* Removed unused variables
* Removed redundant initializations
* WidgetNavigationCustomization.cpp was fixed by the owner
* integers converted to floats where result was stored in a float
* Removed redundent null checks (e.g. before delete statements)
* Renamed variables to prevent non-obvious shadowing
* Fixed use of bitwise & when checking for equality to an enum entry (which is often 0)
* Fixes for some copy paste errors (e.g. FoliageEdMode.cpp)
[CL 2498053 by Dan Oconnor in Main branch]
#jira UE-7808 - Editor slows exponentially when selecting an instanced static mesh in viewport that has a large number of instances
[CL 2427864 by Richard TalbotWatkin in Main branch]
Details view supports displaying UProperties from external UStruct's that are not a property of a UObject.
#jira UE-2246 - BP: Local function variables need to support default values
[CL 2383580 by Michael Schoell in Main branch]