$ git clone -n https://src.fedoraproject.org/rpms/R-fastmap.git /var/lib/mock/f37-build-641399-71930/root/chroot_tmpdir/scmroot/R-fastmap
Cloning into '/var/lib/mock/f37-build-641399-71930/root/chroot_tmpdir/scmroot/R-fastmap'...
$ git reset --hard a683fc114f206735e0e0cd3183d6b3fe5a3af936
HEAD is now at a683fc1 R 4.2.1