* Pod-Simple-Texinfo/lib/Pod/Simple/Texinfo.pm
(_texinfo_handle_element_end): do not fall back to converting to raw
text when the normalized Texinfo name is empty, keep an empty string,
since this needs to be handled anyway.

* Pod-Simple-Texinfo/pod2texi.pl (%command_structuring_level): copy
the hash, it should not change often if ever.