Possible Memory leak in infer

[maustinstar]

IRIS/ImageTransfer.swift

render() called on line 17 leads to memory leak.

note: may be an effect multithreading?

Calling:
UIGraphicsBeginImageContext(size)
should allocate enough memory for the final image.
However, after each patch is drawn to the context:
(UIImage(cgImage: cropped).draw(in: rect))
the memory usage increases until:
UIGraphicsEndImageContext()
and the image is returned from the function.