Crashing with NSManagedObject

[mergesort]

On line 168 in KZPropertyMapper.m objc_msgSend(instance, NSSelectorFromString(@"setPrimitiveValue:forKey:"), value, mapping);, when it tries to call setValue:withMapping:onInstance: it crashes with an EXC_BAD_ACCESS.

In my testing, this is occurring on an iPhone 5s, but not on a 4s or 5. My suspicion is that this is an issue with the new 64-bit architecture. I'm using MOGenerator to generate the models, but nothing special besides that.

[krzysztofzablocki]

Can you try my newest commit? I forgot to do typed call here, might help

[mergesort]

This fixed the crash.