Merge pull request #2295 from garrettheel/condition-expr-or-evaluation

dynamodb2: Defer evaluation of the OR RHS in condition expr

moto/dynamodb2/comparisons.py

@@ -1004,8 +1004,7 @@ class OpOr(Op):
 
     def expr(self, item):
         lhs = self.lhs.expr(item)
-        rhs = self.rhs.expr(item)
-        return lhs or rhs
+        return lhs or self.rhs.expr(item)
 
 
 class Func(object):