Wrong image dimensions when irot is set

[mrjackbo]

Here is an image for which libheif 1.17 reports wrong dimensions for the primary image. It has width 722 and height 1024 after the correct rotation is applied, but libheif outputs 1024x722.

$ ./heif-info kimono.rotate90.avif
MIME type: image/avif
main brand: avif
compatible brands: avif, mif1, miaf, MA1B

image: 1024x722 (id=1), primary
  colorspace: YCbCr, 4:4:4
  bit depth: 8
  color profile: no
  alpha channel: no 
  depth channel: no
metadata:
  none
transformations:
  angle (ccw): 270
[...]

I believe the problem is here: For some reason the irot box appears before the ispe box, and thus line 626, which is supposed to flip the dimensions, is never called.