$ git clone -n https://src.fedoraproject.org/rpms/R-xml2.git /var/lib/mock/f38-build-724728-99479/root/chroot_tmpdir/scmroot/R-xml2
Cloning into '/var/lib/mock/f38-build-724728-99479/root/chroot_tmpdir/scmroot/R-xml2'...
$ git reset --hard 0d15e0b01fbf3087fec301408fca74e22faf12d7
HEAD is now at 0d15e0b 1.3.4