Pillow 9.2: 'NoneType' object has no attribute 'copy' #6454
Description
Testcase:
import base64, io
import PIL.Image
gif = base64.b64decode('''
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mMiKVLSCvq1ARTDkPqLMbyRcwcg1g5qDr4pUqIJBsKgLK0QjC1SgotKkMMUqVIEKKsl9FwMoyQDeL5j6e9sURwrNa448ferfrSWg4H8COICoFRPRQRCgAAwE2EdlEX/WRxMDUCIGQXdQUYEWeIEYmIEauIEc2IEe+IEgGIIiOIIkWIImeIIomIIquIIs2IIu+IIwGIMyOIMgERAAIf4AOw==''')
with PIL.Image.open(io.BytesIO(gif)) as img:
assert not getattr(img,'is_animated',False)
PIL.ImageOps.exif_transpose( img )Console:
Traceback (most recent call last):
File "err.py", line 17, in <module>
PIL.ImageOps.exif_transpose( img )
File "/home/max/.local/lib/python3.8/site-packages/PIL/ImageOps.py", line 610, in exif_transpose
return image.copy()
File "/home/max/.local/lib/python3.8/site-packages/PIL/Image.py", line 1150, in copy
return self._new(self.im.copy())
AttributeError: 'NoneType' object has no attribute 'copy'