$ git clone -n https://src.fedoraproject.org/rpms/R-S4Vectors.git /var/lib/mock/f31-build-49816-27348/root/chroot_tmpdir/scmroot/R-S4Vectors
Cloning into '/var/lib/mock/f31-build-49816-27348/root/chroot_tmpdir/scmroot/R-S4Vectors'...
$ git reset --hard 318674a8523d4299bc5f896ecf47f8f51f462bab
HEAD is now at 318674a 0.20.1