I think Reedy found this recently when purging our portal pages at translatewiki.net.
Version: 1.18.x Severity: major
Not quite a dupe of bug #28754
unassign Daniel Friesen after talking to him
I can't see this function call near that line in 1.18/trunk.
The functions seem to be the AFAIK...not sure why this would happen. Any more info?
Over a year old bug, haven't seen this recently.