Crash occurred moving folder while connected to source control

I went to move our SpeedTree test assets to a new location and after selecting checkout editor crashed

I've been unable to reproduce this crash, but looking on crash reporter several users have hit this with various descriptions

n/a

<CALLSTACK START>
Signaler::DeleteOnIntr(void*) Address = 0x150cc4430 (filename not found) [in UE4Editor-PerforceSourceControl.dylib]
Rpc::~Rpc() Address = 0x150c99409 (filename not found) [in UE4Editor-PerforceSourceControl.dylib]
Client::~Client() Address = 0x150c78ccc (filename not found) [in UE4Editor-PerforceSourceControl.dylib]
ClientApi::~ClientApi() Address = 0x150c7934c (filename not found) [in UE4Editor-PerforceSourceControl.dylib]
FPerforceUpdateStatusWorker::Execute(FPerforceSourceControlCommand&) Address = 0x150de0710 (filename not found) [in UE4Editor-PerforceSourceControl.dylib]
FPerforceSourceControlCommand::DoThreadedWork() Address = 0x150dcc490 (filename not found) [in UE4Editor-PerforceSourceControl.dylib]
FQueuedThread::Run() Address = 0x10af6a4b8 (filename not found) [in UE4Editor-Core.dylib]
FRunnableThreadPThread::Run() Address = 0x10ae789bd (filename not found) [in UE4Editor-Core.dylib]
FRunnableThreadPThread::_ThreadProc(void*) Address = 0x10ae5e42c (filename not found) [in UE4Editor-Core.dylib]
_pthread_body Address = 0x7fff83d1b268 (filename not found) [in libsystem_pthread.dylib]
_pthread_body Address = 0x7fff83d1b1e5 (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff83d1941d (filename not found) [in libsystem_pthread.dylib]
<CALLSTACK END>