evazion 6740ef17ab posts: fix detection of exif_rotation tag. ...

`IFD0:Orientation` is the orientation of the main image.
`IFD1:Orientation` is the orientation of the embedded thumbnail, if it
has one. Using `IFD1:Orientation` was incorrect here because some images
have a non-rotated main image but a rotated thumbnail. Post #1023563 is
an example.

2021-09-22 11:17:28 -05:00

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