$ git clone -n https://src.fedoraproject.org/rpms/perl-Log-Dispatchouli.git /var/lib/mock/f40-build-2018621-46442/root/chroot_tmpdir/scmroot/perl-Log-Dispatchouli
Cloning into '/var/lib/mock/f40-build-2018621-46442/root/chroot_tmpdir/scmroot/perl-Log-Dispatchouli'...
$ git fetch origin 952b73222bdcb6eb6ad994bea0c8ca0a1751d1e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Log-Dispatchouli
 * [new ref]         952b73222bdcb6eb6ad994bea0c8ca0a1751d1e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 952b732 3.007 bump (rhbz#2237032)