$ git clone -n https://src.fedoraproject.org/rpms/abook.git /var/lib/mock/f40-build-796310-140594/root/chroot_tmpdir/scmroot/abook
Cloning into '/var/lib/mock/f40-build-796310-140594/root/chroot_tmpdir/scmroot/abook'...
$ git fetch origin b439195d0c97fbfa6f14dad6a911ba8f0a2bdafe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/abook
 * [new ref]         b439195d0c97fbfa6f14dad6a911ba8f0a2bdafe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b439195 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild