$ git clone -n https://src.fedoraproject.org/rpms/R-IRanges.git /var/lib/mock/f31-build-76381-31407/root/chroot_tmpdir/scmroot/R-IRanges
Cloning into '/var/lib/mock/f31-build-76381-31407/root/chroot_tmpdir/scmroot/R-IRanges'...
$ git reset --hard 271a476e816af0f7410217a456a533922b5b7166
HEAD is now at 271a476 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild