Crash: AsyncImageView.m line 340 -[AsyncImageLoader updateQueue]

[shrinivasa]

Hi Nick

We are observing a crash while using AsyncImageView.
Info:
Fatal Exception: NSGenericException
*** Collection <__NSArrayM: 0x15a37900> was mutated while being enumerated.

Log:
Thread : Fatal Exception: NSGenericException
0 CoreFoundation 0x242be137 __exceptionPreprocess + 126
1 libobjc.A.dylib 0x32748c77 objc_exception_throw + 38
2 CoreFoundation 0x242bdbbd -[NSException name]
3 demo 0x000ee61b -AsyncImageLoader updateQueue
4 demo 0x000eee3b -AsyncImageLoader loadImageWithURL:target:success:failure:
5 demo 0x000eeedd -AsyncImageLoader loadImageWithURL:target:action:
6 demo 0x000ef8d5 -UIImageView(AsyncImageView) setImageURL:
7 demo 0x000efb29 -AsyncImageView setImageURL:
8 demo 0x0023823f -JRRowItemView configureViewWithItem:
9 demo 0x002e3a05 -JRItemRowsCell swipeView:viewForItemAtIndex:reusingView:
10 demo 0x000dbcc1 -SwipeView loadViewAtIndex:
11 demo 0x000dc427 -SwipeView loadUnloadViews
12 demo 0x000dae5b -SwipeView didScroll
13 demo 0x000dcf71 -SwipeView scrollViewDidScroll:

[kez22]

I have crashes on the same UpdateQueue method. Seems to be a modifying array while enumerating the queue problem. Is there any way to fix this problem? I dont want to switch to another library but users are consistently getting a crash here. I tried reverse enumerating and conditions trying to prevent a wrong index, but it seems to crash anyway.