$ git clone -n https://src.fedoraproject.org/rpms/vkmark.git /var/lib/mock/f39-build-1601890-38563/root/chroot_tmpdir/scmroot/vkmark
Cloning into '/var/lib/mock/f39-build-1601890-38563/root/chroot_tmpdir/scmroot/vkmark'...
$ git fetch origin c3c429ada5452a86531bcdb667508eb1f46b2e25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vkmark
 * [new ref]         c3c429ada5452a86531bcdb667508eb1f46b2e25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3c429a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild