Last modified: 2010-05-15 16:03:26 UTC
Steps to reproduce:
1-In English Wikipedia, try entering "son" (including quotes) in the search box in [[Special:Allpages]] (see URL).
2-Quotes will be converted to "
3-Click on the Go button again. " will be converted to &quot; and an error message appears saying that: The given page title is invalid...etc
Fixed in r31984 on trunk, r31985 for 1.12 branch.