On ArchWiki, specifying rdnamespace to any value (for example ) results in
internal database query error:
"info": "[e0c8b223] Database query error"
The query works fine without the rdnamespace parameter. Also note that the same
query on e.g. Wikipedia is completely fine even with rdnamespace parameter .
I've been able to reproduce this on localhost on my testing wiki by simply
upgrading from 1.22 to 1.25 (ArchWiki upgraded to 1.25 from 1.23). I've tried to
run the refreshLinks.php maintenance script , but it did not fix the issue.
Any ideas on what is going on and how to fix this?