$ git clone -n https://src.fedoraproject.org/rpms/libAfterImage.git /var/lib/mock/f45-build-15725-478/root/chroot_tmpdir/scmroot/libAfterImage
Cloning into '/var/lib/mock/f45-build-15725-478/root/chroot_tmpdir/scmroot/libAfterImage'...
$ git fetch origin b4bdf55a0c3ed2ac644698438412661af8710c2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libAfterImage
 * [new ref]         b4bdf55a0c3ed2ac644698438412661af8710c2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4bdf55 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild