$ git clone -n https://src.fedoraproject.org/rpms/R-xml2.git /var/lib/mock/f31-build-74286-31105/root/chroot_tmpdir/scmroot/R-xml2
Cloning into '/var/lib/mock/f31-build-74286-31105/root/chroot_tmpdir/scmroot/R-xml2'...
$ git reset --hard dd7104fc1b1222554ccdf1bc2e955851de473856
HEAD is now at dd7104f - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild