$ git clone -n https://src.fedoraproject.org/rpms/R-rlang.git /var/lib/mock/f37-build-641518-71970/root/chroot_tmpdir/scmroot/R-rlang
Cloning into '/var/lib/mock/f37-build-641518-71970/root/chroot_tmpdir/scmroot/R-rlang'...
$ git reset --hard c054fc344c01be1573eb222062c231cd9d055da0
HEAD is now at c054fc3 Disable bootstrap