Exception on UITableView endUpdate

[morisk]

Hi guys, Got this exception, can't reproduce it, happens from time to time.

Could be caused by me not releasing memory properly and pending animation happens when it shouldn't be?

- RxCocoa 4.4.2
- RxDataSources 3.1.0
- RxSwift 4.4.2
- RxSwiftExt 3.4.0

OS Version:          iPhone OS 12.2 (16E227)

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Triggered by Thread:  0

Last Exception Backtrace:
0   CoreFoundation                	0x1da4d4518 __exceptionPreprocess + 228 (NSException.m:172)
1   libobjc.A.dylib               	0x1d96af9f8 objc_exception_throw + 56 (objc-exception.mm:557)
2   CoreFoundation                	0x1da3ee148 +[NSException raise:format:arguments:] + 104 (NSException.m:136)
3   Foundation                    	0x1daeb11c8 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 112 (NSException.m:157)
4   UIKitCore                     	0x206ab70d4 -[UITableView _endCellAnimationsWithContext:] + 6380 (UITableView.m:1821)
5   UIKitCore                     	0x206acf4e8 -[UITableView endUpdates] + 88 (UITableView.m:6864)
6   RxDataSources                 	0x105b2c714 closure #1 in closure #1 in RxTableViewSectionedAnimatedDataSource.tableView(_:observedEvent:) + 700 (<compiler-generated>:0)
7   RxDataSources                 	0x105b2c7bc thunk for @escaping @callee_guaranteed () -> () + 28 (<compiler-generated>:0)
8   libdispatch.dylib             	0x1d9f14a38 _dispatch_call_block_and_release + 24 (init.c:1372)
9   libdispatch.dylib             	0x1d9f157d4 _dispatch_client_callout + 16 (object.m:511)
10  libdispatch.dylib             	0x1d9ec3004 _dispatch_main_queue_callback_4CF$VARIANT$mp + 1068 (inline_internal.h:2441)
11  CoreFoundation                	0x1da465ec0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 (CFRunLoop.c:1813)
12  CoreFoundation                	0x1da460df8 __CFRunLoopRun + 1924 (CFRunLoop.c:3113)
13  CoreFoundation                	0x1da460354 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3247)
14  GraphicsServices              	0x1dc66079c GSEventRunModal + 104 (GSEvent.c:2245)
15  UIKitCore                     	0x2068d3b68 UIApplicationMain + 212 (UIApplication.m:4353)
16  Mailbook                      	0x104fde358 main + 68 (AppDelegate.swift:20)
17  libdyld.dylib                 	0x1d9f268e0 start + 4

Thread 0 name:
Thread 0 Crashed:
0   libsystem_kernel.dylib        	0x00000001da0720dc __pthread_kill + 8
1   libsystem_pthread.dylib       	0x00000001da0eb094 pthread_kill$VARIANT$mp + 380 (pthread.c:1492)
2   libsystem_c.dylib             	0x00000001d9fcbf4c __abort + 152 (abort.c:131)
3   libsystem_c.dylib             	0x00000001d9fcbeb4 abort + 152 (abort.c:102)
4   libc++abi.dylib               	0x00000001d9698788 abort_message + 132 (abort_message.cpp:75)
5   libc++abi.dylib               	0x00000001d9698934 default_terminate_handler() + 308 (cxa_default_handlers.cpp:68)
6   libobjc.A.dylib               	0x00000001d96afe00 _objc_terminate() + 124 (objc-exception.mm:693)
7   Mailbook                      	0x000000010503f2fc CLSTerminateHandler() + 348
8   libc++abi.dylib               	0x00000001d96a4838 std::__terminate(void (*)()) + 16 (cxa_handlers.cpp:66)
9   libc++abi.dylib               	0x00000001d96a48c4 std::terminate() + 84 (cxa_handlers.cpp:97)
10  libdispatch.dylib             	0x00000001d9f157e8 _dispatch_client_callout + 36 (object.m:514)
11  libdispatch.dylib             	0x00000001d9ec3004 _dispatch_main_queue_callback_4CF$VARIANT$mp + 1068 (inline_internal.h:2441)
12  CoreFoundation                	0x00000001da465ec0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 (CFRunLoop.c:1813)
13  CoreFoundation                	0x00000001da460df8 __CFRunLoopRun + 1924 (CFRunLoop.c:3113)
14  CoreFoundation                	0x00000001da460354 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3247)
15  GraphicsServices              	0x00000001dc66079c GSEventRunModal + 104 (GSEvent.c:2245)
16  UIKitCore                     	0x00000002068d3b68 UIApplicationMain + 212 (UIApplication.m:4353)
17  Mailbook                      	0x0000000104fde358 main + 68 (AppDelegate.swift:20)
18  libdyld.dylib