$ git clone -n https://src.fedoraproject.org/rpms/vacuum-im.git /var/lib/mock/f41-build-898959-16975/root/chroot_tmpdir/scmroot/vacuum-im
Cloning into '/var/lib/mock/f41-build-898959-16975/root/chroot_tmpdir/scmroot/vacuum-im'...
$ git fetch origin e5af24b3dd23848e84bfa905e538aea3b88859fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vacuum-im
 * [new ref]         e5af24b3dd23848e84bfa905e538aea3b88859fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5af24b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild