Last modified: 2009-01-29 21:13:07 UTC
If "Threshold for stub link formatting (bytes)" is set to anything bigger 0 at [[Special:Preferences]], all articles get randomly marked as stub (red).
... at [[Special:Contributions/]]!
Looking into this...
Fixed in r46429
*** Bug 17202 has been marked as a duplicate of this bug. ***
I've merged that change live to fix the regression.