Crash when closing main window object #37
Description
When you close the window it crashes the app. SDK 3.4.0.GA iOS 8.0
*** Terminating app due to uncaught exception 'NSRangeException', reason: 'Cannot remove an observer <IIViewDeckController 0x7ab6fa00> for the key path "parentViewController" from <IIViewDeckController 0x7ab6fa00> because it is not registered as an observer.'
[ERROR] : *** First throw call stack:
[ERROR] : (
[ERROR] : 0 CoreFoundation 0x0571edf6 exceptionPreprocess + 182
[ERROR] : 1 libobjc.A.dylib 0x052e1a97 objc_exception_throw + 44
[ERROR] : 2 CoreFoundation 0x0571ed1d +[NSException raise:format:] + 141
[ERROR] : 3 Foundation 0x0155f724 -[NSObject(NSKeyValueObserverRegistration) _removeObserver:forProperty:] + 629
[ERROR] : 4 Foundation 0x0155f3ff -[NSObject(NSKeyValueObserverRegistration) removeObserver:forKeyPath:] + 100
[ERROR] : 5 Skoften v4 0x005dbf4d -[IIViewDeckController cleanup] + 50
[ERROR] : 6 Skoften v4 0x005dc095 -[IIViewDeckController dealloc] + 36
[ERROR] : 7 UIKit 0x02d55aeb -[UIViewController release] + 89
[ERROR] : 8 libobjc.A.dylib 0x052f5eb1 objc_release + 65
[ERROR] : 9 UIKit 0x02d6280c __destroy_helper_block_1166 + 28
[ERROR] : 10 libsystem_sim_blocks.dylib 0x0626e793 _Block_release + 211
[ERROR] : 11 libobjc.A.dylib 0x052f5eb1 objc_release + 65
[ERROR] : 12 libobjc.A.dylib 0x052f6d32 _ZN12_GLOBAL__N_119AutoreleasePoolPage3popEPv + 586
[ERROR] : 13 CoreFoundation 0x05600c58 _CFAutoreleasePoolPop + 24
[ERROR] : 14 UIKit 0x02c0042c _wrapRunLoopWithAutoreleasePoolHandler + 59
[ERROR] : 15 CoreFoundation 0x05641fbe __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 30
[ERROR] : 16 CoreFoundation 0x05641f00 __CFRunLoopDoObservers + 400
[ERROR] : 17 CoreFoundation 0x0563793a __CFRunLoopRun + 1226
[ERROR] : 18 CoreFoundation 0x056371ab CFRunLoopRunSpecific + 443
[ERROR] : 19 CoreFoundation 0x05636fdb CFRunLoopRunInMode + 123
[ERROR] : 20 GraphicsServices 0x065c024f GSEventRunModal + 192
[ERROR] : 21 GraphicsServices 0x065c008c GSEventRun + 104
[ERROR] : 22 UIKit 0x02c04e16 UIApplicationMain + 1526
[ERROR] : 23 Skoften v4 0x00027898 main + 456
[ERROR] : 24 libdyld.dylib 0x06226ac9 start + 1
[ERROR] : )
[ERROR] : libc++abi.dylib: terminating with uncaught exception of type NSException