This project crashes when one Blueprint is compiled if its child Blueprint is opened in another tab

This project crashes when one Blueprint is compiled if its child Blueprint is opened in another tab. This only occurs with one Parent/Child combination: the crash occurs when compiling Building while CivilBulding, its child, is open.

Reproduced in 4.7.3 binary and Main (//depot/UE4/Promotable-CL-2482603)

Crash Report:
[Link Removed]

Call Stack:
UE4Editor_CoreUObject! UObject::CallFunction() scriptcore.cpp:484
UE4Editor_CoreUObject! UObject::ProcessInternal() scriptcore.cpp:602
UE4Editor_CoreUObject! UFunction::Invoke() class.cpp:3684
UE4Editor_CoreUObject! UObject::ProcessEvent() scriptcore.cpp:924
UE4Editor_Engine! AActor::ProcessEvent() actor.cpp:529
UE4Editor_Engine! AActor::ExecuteConstruction() actorconstruction.cpp:552
UE4Editor_Engine! AActor::RerunConstructionScripts() actorconstruction.cpp:436
UE4Editor_Engine! AActor::PostEditChangeProperty() actoreditor.cpp:67
UE4Editor_CoreUObject! UObject::PostEditChange() obj.cpp:232
UE4Editor_UnrealEd! FBlueprintEditorUtils::PostEditChangeBlueprintActors() blueprinteditorutils.cpp:6352
UE4Editor_Kismet! FBlueprintEditor::OnBlueprintChangedImpl() blueprinteditor.cpp:2923
UE4Editor_Kismet! TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,TTypeWrapper<void> __cdecl() delegateinstancesimpl_variadics.inl:282
UE4Editor_Kismet! TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,void __cdecl() delegateinstancesimpl_variadics.inl:388
UE4Editor_Engine! TBaseMulticastDelegate<void,UBlueprint * __ptr64>::Broadcast() delegatesignatureimpl_variadics.inl:1030
UE4Editor_UnrealEd! FKismetEditorUtilities::CompileBlueprint() kismet2.cpp:814
UE4Editor_UnrealEd! FBlueprintCompileReinstancer::ReinstanceObjects() kismetreinstanceutilities.cpp:376
UE4Editor_UnrealEd! FKismetEditorUtilities::CompileBlueprint() kismet2.cpp:773
UE4Editor_Kismet! FBlueprintEditor::Compile() blueprinteditor.cpp:2990
UE4Editor_Kismet! TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,TTypeWrapper<void> __cdecl() delegateinstancesimpl_variadics.inl:282
UE4Editor_Kismet! TBaseSPMethodDelegateInstance<0,FBlueprintEditor,0,void __cdecl() delegateinstancesimpl_variadics.inl:388
UE4Editor_Slate! FUICommandList::ExecuteAction() uicommandlist.cpp:73
UE4Editor_Slate! SToolBarButtonBlock::OnClicked() stoolbarbuttonblock.cpp:296
UE4Editor_Slate! TMemberFunctionCaller<SToolBarButtonBlock,FReply() delegateinstanceinterface_variadics.h:161
UE4Editor_Slate! TTupleImpl<TIntegerSequence<> >::ApplyAfter_ExplicitReturnType<FReply,TMemberFunctionCaller<SToolBarButtonBlock,FReply() tuple.h:113
UE4Editor_Slate! TBaseSPMethodDelegateInstance<0,SToolBarButtonBlock,0,FReply __cdecl() delegateinstancesimpl_variadics.inl:282
UE4Editor_Slate! TBaseDelegate<FReply>::Execute() delegatesignatureimpl_variadics.inl:439
UE4Editor_Slate! SButton::OnMouseButtonUp() sbutton.cpp:228
UE4Editor_Slate! <lambda_de96dc3471181973108233c6db1f9843>::operator() slateapplication.cpp:3985
UE4Editor_Slate! FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_de96dc3471181973108233c6db1f9843> >() slateapplication.cpp:202
UE4Editor_Slate! FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:3988
UE4Editor_Slate! FSlateApplication::OnMouseUp() slateapplication.cpp:3949
UE4Editor_Core! FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1373
UE4Editor_Core! FWindowsApplication::DeferMessage() windowsapplication.cpp:1669
UE4Editor_Core! FWindowsApplication::ProcessMessage() windowsapplication.cpp:742
UE4Editor_Core! FWindowsApplication::AppWndProc() windowsapplication.cpp:604
user32! UserCallWinProcCheckWow()
user32! DispatchMessageWorker()
UE4Editor_Core! FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:774
UE4Editor! FEngineLoop::Tick() launchengineloop.cpp:2233
UE4Editor! GuardedMain() launch.cpp:142
UE4Editor! GuardedMainWrapper() launchwindows.cpp:126
UE4Editor! WinMain() launchwindows.cpp:202

1. Open the user's project (see comments)
2. Open the CivilBuilding Blueprint
3. Open the Building Blueprint
4. Compile the Building BP

Result:
Crash