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In our project, some online jailbreak users crashed at this location. It seems that there is a problem with the obtained hw_machine. I hope to fix this case later. `Crashed:...

+[SDImageIOAnimatedCoder createFrameAtIndex:source:scale:preserveAspectRatio:thumbnailSize:lazyDecode:animatedImage:]

1

### New Issue Checklist * [x] I have read and understood the [CONTRIBUTING guide](https://github.com/rs/SDWebImage/blob/master/.github/CONTRIBUTING.md) * [x] I have read the [Documentation](http://cocoadocs.org/docsets/SDWebImage/) * [x] I have searched for a similar issue...