It's
been requested on github that EpubMerge make file names in the merged epub unique to cover for other readers/tools that don't properly implement path names.
I'm not interested in adding that to EpubMerge, but I could call Calibre Convert EPUB -> EPUB after merging.
Convert makes the file names unique, while also completely rewriting the HTML, CSS, etc. UnMerge would not be possible afterwards. Also, by default, Convert leaves the ORIGINAL_EPUB format file, which can cause confusion sometimes.
Any opinions on whether that's a worthwhile option to add to EpubMerge?
Output format appears to be the only Convert setting I can easily control, BTW.