Catch TypeError when evaluating leaf in domain inversion

Some values are comparable for Python but valid for Tryton domain like the
datetime.* and None.

issue5163
review16881003

tryton/common/domain_inversion.py

@@ -89,7 +89,10 @@ def eval_leaf(part, context, boolop=operator.and_):
             '=': 'in',
             '!=': 'not in',
             }[operand]
-    return OPERATORS[operand](context_field, value)
+    try:
+        return OPERATORS[operand](context_field, value)
+    except TypeError:
+        return False
 
 
 def inverse_leaf(domain):