maxlath

issue opened: #503

I pushed the 2 non-controversial (including 1 somewhat critical) commits to master, to let this PR contain only the controverted commit

then, as for cover images, works can inherit their editions notices

### BNF La BNF [exposes catalogue data via an API](http://api.bnf.fr/api-sru-catalogue-general) that could be used to get resumes ([Intermarc 330 a](https://multimedia-ext.bnf.fr/pdf/pb-RIMB18_330.pdf)): [exemple for the edition identified by the ISBN 978-2-7560-7215-9](http://catalogue.bnf.fr/api/SRU?version=1.2&operation=searchRetrieve&query=bib.isbn%20adj%20%22978-2-7560-7215-9%22)

- [BNF synopsis via the SPARQL endpoint](https://data.bnf.fr/sparql?query=SELECT%20*%20%7B%0A%20%20%3Chttp%3A%2F%2Fdata.bnf.fr%2Fark%3A%2F12148%2Fcb458412245%23about%3E%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2Fabstract%3E%20%3Fabstract%20.%0A%7D%0A), found by bnf id (wdt:P268) - An [LoC edition description](http://catdir.loc.gov/catdir/description/hc041/2003046574.html), found by lccn (wdt:P244): that's HTML, but maybe there is a JSON API...

@jum-s that's option 1. Definitely the easiest, but we will loose a few manually uploaded/hard to recover covers

This would either need an Inventaire-specific importer at BookWyrm (using for instance the csv export at https://inventaire.io/settings/data), or a BookWyrm-specific exporter at Inventaire, targeting the BookWyrm importer: is there one?...

this would solve problems such as comic book limited series (ex: [The League of Extraordinary Gentlemen, Volume II](https://en.wikipedia.org/wiki/The_League_of_Extraordinary_Gentlemen,_Volume_II)), which are series of issues, but often later published as a single...

@Lambd-Alex it's indeed already possible to add several work on an edition (aka "composite editions"), and that's totally fine, but sometimes it could maybe make more sense to link to...

a way to speed up the introduction of properties depending on certain types of Wikidata-only entities could be to re-introduce a search endpoint that searches Wikidata then filters the results...