$ git clone -n https://src.fedoraproject.org/rpms/qdbm.git /var/lib/mock/f45-build-33904-674/root/chroot_tmpdir/scmroot/qdbm
Cloning into '/var/lib/mock/f45-build-33904-674/root/chroot_tmpdir/scmroot/qdbm'...
$ git fetch origin a20756ca24a5626cf1b6170496fb4bf3cdff5338:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qdbm
 * [new ref]         a20756ca24a5626cf1b6170496fb4bf3cdff5338 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a20756c Perl 5.44 rebuild