$ git clone -n https://src.fedoraproject.org/rpms/R-S4Vectors.git /var/lib/mock/f31-build-92267-32352/root/chroot_tmpdir/scmroot/R-S4Vectors
Cloning into '/var/lib/mock/f31-build-92267-32352/root/chroot_tmpdir/scmroot/R-S4Vectors'...
$ git reset --hard d2c8fbfef1cf21a421dd7ecb58a2aa0f92807f9b
HEAD is now at d2c8fbf Remove explicit dependencies provided by automatic dependency generator.