$ git clone -n https://src.fedoraproject.org/rpms/R-rgeos.git /var/lib/mock/f31-build-109114-33899/root/chroot_tmpdir/scmroot/R-rgeos
Cloning into '/var/lib/mock/f31-build-109114-33899/root/chroot_tmpdir/scmroot/R-rgeos'...
$ git reset --hard 6cfd10ed2a4fc7b07fd792674b279459d2bebb54
HEAD is now at 6cfd10e Merge branch 'f30'