$ git clone -n https://src.fedoraproject.org/rpms/R-yaml.git /var/lib/mock/f37-build-641604-71972/root/chroot_tmpdir/scmroot/R-yaml
Cloning into '/var/lib/mock/f37-build-641604-71972/root/chroot_tmpdir/scmroot/R-yaml'...
$ git reset --hard 1767e3719febfaf8e9a7187d0e8c8c3ec4d4899b
HEAD is now at 1767e37 update to 2.3.5, rebuild for R 4.2.1