ServiceStack/ServiceStack.OrmLite — pull request #45 by jrmitch120 (2012-04-27 20:02:55+00:00)
Title: Modified QuerySingle to exclude nulls on it's filter set.

Brings it inline with:

T QuerySingle(this IDbCommand dbCmd, string sql, object anonType)
T QueryScalar(this IDbCommand dbCmd, object anonType)
T QueryScalar(this IDbCommand dbCmd, string sql, object anonType=null)