$ git clone -n https://src.fedoraproject.org/rpms/SDL2_image.git /var/lib/mock/f42-build-868855-176291/root/chroot_tmpdir/scmroot/SDL2_image
Cloning into '/var/lib/mock/f42-build-868855-176291/root/chroot_tmpdir/scmroot/SDL2_image'...
$ git fetch origin 216ad0e9369db3a889669fee8f8dd146256ae32f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/SDL2_image
 * [new ref]         216ad0e9369db3a889669fee8f8dd146256ae32f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 216ad0e Rebuild for jpegxl (libjxl) 0.11.1