$ git clone -n https://src.fedoraproject.org/rpms/R-testthat.git /var/lib/mock/f38-build-700509-88142/root/chroot_tmpdir/scmroot/R-testthat
Cloning into '/var/lib/mock/f38-build-700509-88142/root/chroot_tmpdir/scmroot/R-testthat'...
$ git reset --hard dd66ece86164b081ce616d2021adf539e8851fbd
HEAD is now at dd66ece update to 3.1.6