$ git clone -n https://src.fedoraproject.org/rpms/R-dplyr.git /var/lib/mock/f41-build-1280344-23185/root/chroot_tmpdir/scmroot/R-dplyr
Cloning into '/var/lib/mock/f41-build-1280344-23185/root/chroot_tmpdir/scmroot/R-dplyr'...
$ git fetch origin dab3fafc3c9c1a701137e8577a2c55a07b603759:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-dplyr
 * [new ref]         dab3fafc3c9c1a701137e8577a2c55a07b603759 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dab3faf Update to latest version