奇怪的CoreData崩溃[NSManagedObject(_NSInternalMethods)_nilOutReservedCurrentEventSnapshot__]

Question

突然之间我得到了一些奇怪的CoreData崩溃,有没有人见过这个或知道会发生什么？

#   Binary Image Name   Address Symbol
0   RRio    0x003353b0  testflight_backtrace
1   RRio    0x00334bec  TFSignalHandler
2   libsystem_platform.dylib    0x3949f062  _sigtramp
3   CoreData    0x2e46446a  -[NSManagedObject(_NSInternalMethods) _nilOutReservedCurrentEventSnapshot__]
4   CoreData    0x2e45eee4  -[NSManagedObjectContext(_NSInternalChangeProcessing) _processRecentChanges:]
5   CoreData    0x2e4584f0  _performRunLoopAction
6   CoreFoundation  0x2e6b11cc  __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
7   CoreFoundation  0x2e6aeb70  __CFRunLoopDoObservers
8   CoreFoundation  0x2e6aeeb2  __CFRunLoopRun
9   CoreFoundation  0x2e619c26  CFRunLoopRunSpecific
10  CoreFoundation  0x2e619a0a  CFRunLoopRunInMode
11  GraphicsServices    0x3330d282  GSEventRunModal
12  UIKit   0x30ebd048  UIApplicationMain
13  RRio    0x000adcda  main in main.m on Line 15
14  libdyld.dylib   0x39384ab6  start

编译最低iOS 6.1并使用ARC