$ git clone -n https://src.fedoraproject.org/rpms/R-Cairo.git /var/lib/mock/f37-build-641720-72037/root/chroot_tmpdir/scmroot/R-Cairo
Cloning into '/var/lib/mock/f37-build-641720-72037/root/chroot_tmpdir/scmroot/R-Cairo'...
$ git reset --hard 21ce91944be6f29aef53fb44e0d2564a6f2aa5c2
HEAD is now at 21ce919 update to 1.6-0, rebuild for R 4.2.1