Saves value in subclasses from EnumCharType

  - GetValue was not used when saving the value in EnumCharType

Author: Christian

src/NHibernate/Type/EnumCharType.cs

@@ -104,7 +104,7 @@ public override void Set(IDbCommand cmd, object value, int index)
 			}
 			else
 			{
-				par.Value = ((Char) (Int32) (value)).ToString();
+				par.Value = GetValue(value).ToString();
 			}
 		}
 
@@ -164,4 +164,4 @@ public override string ObjectToSQLString(object value, Dialect.Dialect dialect)
 			return '\'' + GetValue(value).ToString() + '\'';
 		}
 	}
-}
+}