1cf48b0dfa
- Return unknown properties in a separate 404 propstat (RFC 4918 §9.2) via folder_prop_is_known/file_prop_is_known classifiers - Detect unclosed <propfind> element and return 400 Bad Request - Add write_folder/file_entry_with_dead_props to include stored dead properties in PROPFIND responses - Change write_folder/file_requested_props to accept &[&QualifiedName] to avoid clone overhead when using partition output