$ git clone -n https://src.fedoraproject.org/rpms/flwkey.git /var/lib/mock/f45-build-9128-399/root/chroot_tmpdir/scmroot/flwkey
Cloning into '/var/lib/mock/f45-build-9128-399/root/chroot_tmpdir/scmroot/flwkey'...
$ git fetch origin c2ae74ac7fbb4b453f3b7fa8728f11983a1cc613:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flwkey
 * [new ref]         c2ae74ac7fbb4b453f3b7fa8728f11983a1cc613 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2ae74a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild