Bug: wikicommons.images

[bonswouar]

Version of SearXNG, commit number if you are using on master branch and stipulate if you forked SearXNG
2023.9.2+4f8895c6d

How did you install SearXNG?
Docker from official wiki

What happened?
I always get 0 result with wikicommons images (but no error)

How To Reproduce
!wc birds

Expected behavior
Should return results

Screenshots & Logs

searxng    | DEBUG   searx.engines.wikicommons.imag: HTTP Accept-Language:
searxng    | DEBUG   searx.search                  : actual_timeout=3.0 (default_timeout=3.0, ?timeout_limit=None, max_request_timeout=None)
searxng    | DEBUG   searx.network.wikicommons.imag: HTTP Request: GET https://commons.wikimedia.org/w/api.php?action=query&format=json&generator=search&gsrnamespace=6&gsrprop=snippet&prop=info%7Cimageinfo&iiprop=url%7Csize%7Cmime&iiurlheight=180&uselang=en&gsrlimit=10&gsroffset=0&gsrsearch=filetype%253Abitmap%257Cdrawing+birds "HTTP/2 200 OK" (application/json; charset=utf-8)

Additional context
It seems to be because of https://github.com/searxng/searxng/blob/master/searx/engines/wikicommons.py#L43
For some reason it gets url encoded twice, resulting in filetype%253Abitmap%257Cdrawing+birds instead of filetype%3Abitmap%7Cdrawing+birds (see logs)

[return42]

@bonswouar thanks for early testing and your deep analysis, which was very helpful to me 👍 .. seems we should better not url-quote : and | --> I send PR #2708 to fix this issue, if you would have a look ..