Crashlog of FAF 2.4 regarding _CFPrefsDeliverPendingKVONotifications

gistfile1.txt

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libobjc.A.dylib               	0x00007fff58d3ac3e object_isClass + 31
1   com.apple.Foundation          	0x00007fff33c555c1 KVO_IS_RETAINING_ALL_OBSERVERS_OF_THIS_OBJECT_IF_IT_CRASHES_AN_OBSERVER_WAS_OVERRELEASED_OR_SMASHED + 58
2   com.apple.Foundation          	0x00007fff33c55372 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:usingBlock:] + 341
3   com.apple.Foundation          	0x00007fff33c54f24 -[NSObject(NSKeyValueObservingPrivate) _notifyObserversOfChangeFromValuesForKeys:toValuesForKeys:] + 699
4   com.apple.CoreFoundation      	0x00007fff31af5ebb -[CFPrefsSource forEachObserver:] + 347
5   com.apple.CoreFoundation      	0x00007fff31af66e0 -[CFPrefsSource _notifyObserversOfChangeFromValuesForKeys:toValuesForKeys:] + 80
6   com.apple.CoreFoundation      	0x00007fff31b39f52 __93-[CFPrefsSearchListSource deferredNotifyCausedByLoadingOfChangesFromDictionary:toDictionary:]_block_invoke + 34
7   com.apple.CoreFoundation      	0x00007fff31b5ed21 _CFPrefsDeliverPendingKVONotifications + 113
8   com.apple.CoreFoundation      	0x00007fff31b3acac __108-[_CFXPreferences(SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:]_block_invoke + 332
9   com.apple.CoreFoundation      	0x00007fff31b3aaf5 -[_CFXPreferences(SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:] + 341
10  com.apple.CoreFoundation      	0x00007fff31b61db0 -[_CFXPreferences setValue:forKey:appIdentifier:container:configurationURL:] + 96
11  com.apple.CoreFoundation      	0x00007fff31a09bf5 _CFPreferencesSetAppValueWithContainer + 117
12  com.apple.Foundation          	0x00007fff33b0ef42 -[NSUserDefaults(NSUserDefaults) setObject:forKey:] + 55