Branching policy change: from now on, 'master' branch functions only as an archive, accepting only merging and annotated tagging. All commits goes to 'develop' branch, including bugfixs to the last version. This theme will last until the first minor release.
Prior to this fix, the tag only worked for sophie_entry_list_url page due to its assumption that the format of the reversed url is fixed. But generally the url contains a slug certain part of the blog, as apposed to sophie_entry_list_url, which contained not such.