merge r10411 to trunk (fixed a bug, a query result is incorrect when a value variable of condition is null)
merge r10411 to trunk
(fixed a bug, a query result is incorrect when a value variable of condition is null)
XpressEngineGoogleCode/xe-core-svn,XpressEngineGoogleCode/xe-core-svn,XpressEngineGoogleCode/xe-core-svn