$ git clone -n https://src.fedoraproject.org/rpms/vnc-reflector.git /var/lib/mock/f41-build-725985-13125/root/chroot_tmpdir/scmroot/vnc-reflector
Cloning into '/var/lib/mock/f41-build-725985-13125/root/chroot_tmpdir/scmroot/vnc-reflector'...
$ git fetch origin c05333788147d31e1e105d63ff0c04511899867a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vnc-reflector
 * [new ref]         c05333788147d31e1e105d63ff0c04511899867a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c053337 Eliminate use of obsolete %patchN syntax (#2283636)