XML special characters not rendered properly in the index
When a title in the index of a PDF document contains a special XML character, such as for instance a quote, zathura with the poppler plugin, in the index mode, prints its associated XML entity instead of the character. For instance, if the title is "Section's title", it will be printed as "Section's title". See example.pdf.
This is due to the fact that the function g_markup_escape_text is called twice on the strings of the index: once in the function build_index of the plugin, and once in the function document_index_build of zathura. I believe the former call has to be removed.