$ git clone -n https://src.fedoraproject.org/rpms/xreader.git /var/lib/mock/f40-build-783200-132738/root/chroot_tmpdir/scmroot/xreader
Cloning into '/var/lib/mock/f40-build-783200-132738/root/chroot_tmpdir/scmroot/xreader'...
$ git fetch origin b7f16214869942d9fcc0be696e3aaee7257a28d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xreader
 * [new ref]         b7f16214869942d9fcc0be696e3aaee7257a28d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7f1621 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild