Could you provide a minimal testcase?

I'm not sure what you mean by "minimal". Any change like the one above fails if made by API, but works in the browser. It seems like a pretty small change to me.

By minimal I refer to a testcase that is not 465 lines long (like your .py file) but only triggers the problem and does nothing else. Nobody will want to read 465 files to find a potential mistake in there.

Empty change shows the problem: http://proiecte.strainu.ro/wiki/test.py

I tested this from a server with a reliable Internet connection from another ISP than my home provider, so I don't think this has anything to do with my connection.

More data gathered from IRC with the help of MaxSem:

• editing *works* from API for ro:Lista_monumentelor_istorice_din_județul_Caraș-Severin ‎(213K currently)
• editing *doesn't work *from API for ro:Lista_monumentelor_istorice_din_București,_sector_1 (184K currently)
• editing works from browser for both pages

The error is "Maximum execution time of 180 seconds exceeded" and happens after the page is saved, apparently during parsing of the page.

I still believe that editing should work just as well from API and from browser.

Perhaps it's a dup of bug 57026 ? Well, more like the other way around, but since that bug already has a patch...

@Strainu: 9 years later, is this still an issue, or can this ticket be closed? :-/

I think it can be closed, I haven't seen a 504 in a long time.