$ git clone -n https://src.fedoraproject.org/rpms/dbus-test-runner.git /var/lib/mock/f45-build-7327-362/root/chroot_tmpdir/scmroot/dbus-test-runner
Cloning into '/var/lib/mock/f45-build-7327-362/root/chroot_tmpdir/scmroot/dbus-test-runner'...
$ git fetch origin 8e92347ca4e6f6bc316b529d0751d107e90b9209:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dbus-test-runner
 * [new ref]         8e92347ca4e6f6bc316b529d0751d107e90b9209 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e92347 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild