$ git clone -n https://src.fedoraproject.org/rpms/R-ps.git /var/lib/mock/f33-build-233850-50456/root/chroot_tmpdir/scmroot/R-ps
Cloning into '/var/lib/mock/f33-build-233850-50456/root/chroot_tmpdir/scmroot/R-ps'...
$ git reset --hard 145563b40c7fb2c89a5f2b9a49b8a92e95f3cb8e
HEAD is now at 145563b Merge branch 'f30'