$ git clone -n https://src.fedoraproject.org/rpms/R-xml2.git /var/lib/mock/f33-build-510394-64504/root/chroot_tmpdir/scmroot/R-xml2
Cloning into '/var/lib/mock/f33-build-510394-64504/root/chroot_tmpdir/scmroot/R-xml2'...
$ git reset --hard 86b719f88f9bee55a39ef8270d97db73ba992d87
HEAD is now at 86b719f - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild