$ git clone -n https://src.fedoraproject.org/rpms/gerrymander.git /var/lib/mock/f45-build-9768-408/root/chroot_tmpdir/scmroot/gerrymander
Cloning into '/var/lib/mock/f45-build-9768-408/root/chroot_tmpdir/scmroot/gerrymander'...
$ git fetch origin 5e082370280e457012bc2089df1c05dc01898c3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gerrymander
 * [new ref]         5e082370280e457012bc2089df1c05dc01898c3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e08237 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild