$ git clone -n https://src.fedoraproject.org/rpms/nautilus.git /var/lib/mock/f41-build-843452-162047/root/chroot_tmpdir/scmroot/nautilus
Cloning into '/var/lib/mock/f41-build-843452-162047/root/chroot_tmpdir/scmroot/nautilus'...
$ git fetch origin 32ca8225cb667f022c6000b7e1619de55b3de934:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nautilus
 * [new ref]         32ca8225cb667f022c6000b7e1619de55b3de934 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32ca822 Update to 47.beta.1