$ git clone -n https://src.fedoraproject.org/rpms/R-fts.git /var/lib/mock/f37-build-641759-72037/root/chroot_tmpdir/scmroot/R-fts
Cloning into '/var/lib/mock/f37-build-641759-72037/root/chroot_tmpdir/scmroot/R-fts'...
$ git reset --hard 91a3daf1daba503020db6e26821a741e1ba5dcbc
HEAD is now at 91a3daf R 4.2.1