Expanding a folder in the Finder through the editor will crash the editor

Expanding a folder in the Finder through the editor will crash the editor.

Reproduced in 4.7.2 binary on 10.9.5

Crash Report:
[Link Removed]

1. Open the editor through the Launcher
2. In the Project Browser, click Browse
3. Expand a folder

Result:
Crash

libobjc.A.dylib! cache_t::bad_cache()
FinderKit! -[FI_TListViewController()
FinderKit! -[FI_TListViewController()
CoreFoundation! _CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER_()
CoreFoundation! _CFXNotificationPost()
Foundation! -[NSNotificationCenter()
AppKit! -[NSOutlineView()
AppKit! -[NSOutlineView()
AppKit! -[NSOutlineView()
AppKit! -[NSOutlineView()
FinderKit! -[FI_TListView()
AppKit! -[NSOutlineView()
AppKit! -[NSOutlineView()
FinderKit! -[FI_TListView()
AppKit! -[NSApplication()
AppKit! -[NSControl()
AppKit! -[NSCell()
AppKit! -[NSCell()
AppKit! -[NSButtonCell()
AppKit! -[NSControl()
AppKit! -[NSWindow()
AppKit! -[NSApplication()
AppKit! -[NSApplication()
AppKit! -[NSApplication()
AppKit! -[NSSavePanel()
UE4Editor-DesktopPlatform.dylib! invocation function for block in FDesktopPlatformMac::FileDialogShared()
UE4Editor-DesktopPlatform.dylib! invocation function for block in bool MainThreadReturn<bool>(bool()
UE4Editor-Core.dylib! invocation function for block in PerformBlockOnThread(FCocoaRunLoopSource&, void()
UE4Editor-Core.dylib! FCocoaRunLoopSource::Process()
UE4Editor-Core.dylib! -[FCocoaRunLoopSourceInfo()
CoreFoundation! _CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION_()
CoreFoundation! __CFRunLoopDoSources0()
CoreFoundation! __CFRunLoopRun()
CoreFoundation! CFRunLoopRunSpecific()
HIToolbox! RunCurrentEventLoopInMode()
HIToolbox! ReceiveNextEventCommon()
HIToolbox! _BlockUntilNextEventMatchingListInModeWithFilter()
AppKit! _DPSNextEvent()
AppKit! -[NSApplication()
AppKit! -[NSApplication()
UE4Editor! tchar_main()
UE4Editor! main()
libdyld.dylib! start()