$ git clone -n https://src.fedoraproject.org/rpms/python-pymediawiki.git /var/lib/mock/f39-build-1488161-34496/root/chroot_tmpdir/scmroot/python-pymediawiki
Cloning into '/var/lib/mock/f39-build-1488161-34496/root/chroot_tmpdir/scmroot/python-pymediawiki'...
$ git fetch origin 5b300b62faec48e4d29fa295c8ac5fcd0a9e8671:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pymediawiki
 * [new ref]         5b300b62faec48e4d29fa295c8ac5fcd0a9e8671 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b300b6 Update to 0.7.3 (fedora#2227337)