Hi! This is a very useful plugin, which is par for the course for kiwidude, thanks again for your valuable plugins
I see an issue which causes Sigil validation (and epubcheck) to fail. I'm not sure if it's a bug or a validation issue? Sigil says:
The "role" attribute is not an allowed attribute of the <creator> element.
The offending line is
<dc:creator xmlns:ns1="http://www.idpf.org/2007/opf" ns1:file-as="Author, The" role="aut">Author, The</dc:creator>
(name changed to protect the innocent)
The workaround is trivial, as changing it to ns1:role="aut" fixes it. Is this a bug or am I doing something strange?
On a side note I'll chime in about the remove non dc:metadata option: while it's little hassle to run it twice, it's fairly counter-intuitive that it *doesn't* remove non dc:metadata if you also update metadata. I just do it in two passes, so it's no big issue at all, but I'd prefer the non dc removal to be run last