$ git clone -n https://src.fedoraproject.org/rpms/gnome-remote-desktop.git /var/lib/mock/f40-build-1736731-24671/root/chroot_tmpdir/scmroot/gnome-remote-desktop
Cloning into '/var/lib/mock/f40-build-1736731-24671/root/chroot_tmpdir/scmroot/gnome-remote-desktop'...
$ git fetch origin 521ccc7b73fdb722d31c01941a62cf25f27e6f2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-remote-desktop
 * [new ref]         521ccc7b73fdb722d31c01941a62cf25f27e6f2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 521ccc7 Update to 46.3