$ git clone -n https://src.fedoraproject.org/rpms/python-pynsgr.git /var/lib/mock/f45-build-32316-659/root/chroot_tmpdir/scmroot/python-pynsgr
Cloning into '/var/lib/mock/f45-build-32316-659/root/chroot_tmpdir/scmroot/python-pynsgr'...
$ git fetch origin f126bb089d4d0934780c7c68fac3e8d949c2a781:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pynsgr
 * [new ref]         f126bb089d4d0934780c7c68fac3e8d949c2a781 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f126bb0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild