[TIMOB-26894] iOS: Crash in navigation-window

The app crashes when opening a navigation-window in certain situations: ``` Crashed: com.apple.main-thread 0 JavaScriptCore 0x1a68b5e70 JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 292 1 JavaScriptCore 0x1a68b5d98 JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 76 2 JavaScriptCore 0x1a61aaa08 llint_entry + 29992 3 JavaScriptCore 0x1a61aaa1c llint_entry + 30012 4 JavaScriptCore 0x1a61aaa1c llint_entry + 30012 5 JavaScriptCore 0x1a61aaa1c llint_entry + 30012 6 JavaScriptCore 0x1a61aaa1c llint_entry + 30012 7 JavaScriptCore 0x1a61aaa1c llint_entry + 30012 8 JavaScriptCore 0x1a61aadc8 llint_entry + 30952 9 JavaScriptCore 0x1a61aaa1c llint_entry + 30012 10 JavaScriptCore 0x1a61a32e4 vmEntryToJavaScript + 308 11 JavaScriptCore 0x1a68125d4 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 424 12 JavaScriptCore 0x1a69c9b78 JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 188 13 JavaScriptCore 0x1a61d8cbc JSObjectCallAsFunction + 368 14 TitaniumKit 0x102ac47bc __TiBindingEventProcess_block_invoke + 48 15 TitaniumKit 0x102ac46d4 TiBindingEventProcess + 716 16 TitaniumKit 0x102ae5040 -[KrollContext invoke:] + 116 17 TitaniumKit 0x102ae50b4 -[KrollContext enqueue:] + 96 18 TitaniumKit 0x102aecdd4 TiBindingRunLoopEnqueue + 92 19 TitaniumKit 0x102acc410 -[TiViewProxy fireEvent:withObject:withSource:propagate:reportSuccess:errorCode:message:] + 204 20 TitaniumKit 0x102a9b704 -[TiWindowProxy windowDidOpen] + 124 21 TitaniumKit 0x102a9c1d8 -[TiWindowProxy open:] + 1032 22 MyApp 0x100f22b30 -[TiUINavigationWindowProxy rootController] (TiUINavigationWindowProxy.m:269) 23 MyApp 0x100f21db8 -[TiUINavigationWindowProxy controller] (TiUINavigationWindowProxy.m:87) 24 MyApp 0x100f23ae8 -[TiUINavigationWindowProxy windowWillOpen] (TiUINavigationWindowProxy.m:484) 25 TitaniumKit 0x102a9d37c -[TiWindowProxy openOnUIThread:] + 352 26 TitaniumKit 0x102a9c1d8 -[TiWindowProxy open:] + 1032 27 CoreFoundation 0x19ee61610 __invoking___ + 144 28 CoreFoundation 0x19ed3f340 -[NSInvocation invoke] + 292 29 TitaniumKit 0x102ae8128 -[KrollMethod call:] + 1368 30 TitaniumKit 0x102ae71a4 __KrollCallAsFunction_block_invoke + 32 31 TitaniumKit 0x102ae6f9c KrollCallAsFunction + 492 32 JavaScriptCore 0x1a61d3788 JSC::JSCallbackObject::call(JSC::ExecState*) + 348 33 JavaScriptCore 0x1a68b5eac JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*) + 352 34 JavaScriptCore 0x1a61aaa08 llint_entry + 29992 35 JavaScriptCore 0x1a61a32e4 vmEntryToJavaScript + 308 36 JavaScriptCore 0x1a68125d4 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 424 37 JavaScriptCore 0x1a69c9b78 JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 188 38 JavaScriptCore 0x1a61d8cbc JSObjectCallAsFunction + 368 39 TitaniumKit 0x102ac47bc __TiBindingEventProcess_block_invoke + 48 40 TitaniumKit 0x102ac46d4 TiBindingEventProcess + 716 41 TitaniumKit 0x102ae5040 -[KrollContext invoke:] + 116 42 TitaniumKit 0x102ae50b4 -[KrollContext enqueue:] + 96 43 TitaniumKit 0x102aecdd4 TiBindingRunLoopEnqueue + 92 44 TitaniumKit 0x102ac4768 TiBindingEventProcess + 864 45 TitaniumKit 0x102ae5040 -[KrollContext invoke:] + 116 46 TitaniumKit 0x102ae50b4 -[KrollContext enqueue:] + 96 47 TitaniumKit 0x102aecdd4 TiBindingRunLoopEnqueue + 92 48 TitaniumKit 0x102acc51c -[TiViewProxy fireEvent:withObject:propagate:reportSuccess:errorCode:message:] + 240 49 TitaniumKit 0x102abcc04 -[TiUIView touchesEnded:withEvent:] + 116 50 UIKitCore 0x1cc033a6c -[UIWindow _sendTouchesForEvent:] + 2472 51 UIKitCore 0x1cc034cd0 -[UIWindow sendEvent:] + 3156 52 UIKitCore 0x1cc013fcc -[UIApplication sendEvent:] + 340 53 UIKitCore 0x1cc0e2e38 __dispatchPreprocessedEventFromEventQueue + 1620 54 UIKitCore 0x1cc0e5830 __handleEventQueueInternal + 4740 55 UIKitCore 0x1cc0de320 __handleHIDEventFetcherDrain + 152 56 CoreFoundation 0x19edea0e0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24 57 CoreFoundation 0x19edea060 __CFRunLoopDoSource0 + 88 58 CoreFoundation 0x19ede9944 __CFRunLoopDoSources0 + 176 59 CoreFoundation 0x19ede4810 __CFRunLoopRun + 1040 60 CoreFoundation 0x19ede40e0 CFRunLoopRunSpecific + 436 61 GraphicsServices 0x1a105d584 GSEventRunModal + 100 62 UIKitCore 0x1cbff8c00 UIApplicationMain + 212 63 MyApp 0x100e70e94 main (main.m:66) 64 libdyld.dylib 0x19e8a2bb4 start + 4 {çode}