$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcrash.git /var/lib/mock/f40-build-2315852-57970/root/chroot_tmpdir/scmroot/kf6-kcrash
Cloning into '/var/lib/mock/f40-build-2315852-57970/root/chroot_tmpdir/scmroot/kf6-kcrash'...
$ git fetch origin 4bae89a2dcea960b266dd69311fffcc42c091f07:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcrash
 * [new ref]         4bae89a2dcea960b266dd69311fffcc42c091f07 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4bae89a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild