EXIF data gets stripped during conversion

[nqzero]

using conversion with auto-rotate fails, eg feh --conversion-timeout 1 --auto-rotate IMG_2502.CR2, ie it fails to rotate the displayed image. using dcraw -c -T IMG_2502.CR2 | feh --auto-rotate -F - works

./IMG_2502.CR2 is a Canon EOS Rebel T6 image.

displaying the exif-data (key: e) also fails with conversion

i'm guessing that the conversion strips the exif data, or at the least, doesn't propagate it in the way that the rest of feh is expecting it