that is _very_ weird, there are 3 very small fixes in there, none of which should cause any breakage. do you see anything in your php error log that could help?
on a side-note; I sometimes suffer from wsod's as well, believed to be caused by a combination of wp super cache & apc. restarting apache solves that, I even have a script that is cronned to check & restart if needed every 10 minutes.