$ git clone -n https://src.fedoraproject.org/rpms/gnulib.git /var/lib/mock/f29-build-5202-1235/root/thebuilddir/tmp/scmroot/gnulib
Cloning into '/var/lib/mock/f29-build-5202-1235/root/thebuilddir/tmp/scmroot/gnulib'...
$ git reset --hard e00bc937a086a41651da11426cdb4e0a9bb4ee94
HEAD is now at e00bc93 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild