Last modified: 2008-03-21 14:27:46 UTC
As an example, http://en.wikipedia.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Australian_cyclists&cmnamespace=0 returns a bunch of tracing code that starts with <error code="internal_api_error_MWException" info="Exception Caught: Database::makeList: empty input">
I tracked the problems back to r32224.
Fixed in r32279.
*** Bug 13469 has been marked as a duplicate of this bug. ***