$ git clone -n https://src.fedoraproject.org/rpms/spamassassin-dqs.git /var/lib/mock/f39-build-1582435-38114/root/chroot_tmpdir/scmroot/spamassassin-dqs
Cloning into '/var/lib/mock/f39-build-1582435-38114/root/chroot_tmpdir/scmroot/spamassassin-dqs'...
$ git fetch origin 65d5c69b5970ca03a463a76a777b4b5de9dcc22f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spamassassin-dqs
 * [new ref]         65d5c69b5970ca03a463a76a777b4b5de9dcc22f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65d5c69 Upgrade to 1.5.1 (#2156856, thanks to Peter Bieringer)