$ git clone -n https://src.fedoraproject.org/rpms/perl-Log-Dispatchouli.git /var/lib/mock/f39-build-1514012-35636/root/chroot_tmpdir/scmroot/perl-Log-Dispatchouli
Cloning into '/var/lib/mock/f39-build-1514012-35636/root/chroot_tmpdir/scmroot/perl-Log-Dispatchouli'...
$ git fetch origin 7dbaaca341dbce0e1e1e4ab453cfef2c053a2187:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Log-Dispatchouli
 * [new ref]         7dbaaca341dbce0e1e1e4ab453cfef2c053a2187 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7dbaaca 3.006 bump (rhbz#2231470)