docs: update docs for ownPropertyOnly, #588

docs/source/tutorials/options.md

@@ -130,7 +130,7 @@ it defaults to false.  For example, when set to true, a blank string would evalu
 
 **lenientIf** modifies the behavior of `strictVariables` to allow handling optional variables. If set to `true`, an undefined variable will *not* cause an exception in the following two situations: a) it is the condition to an `if`, `elsif`, or `unless` tag; b) it occurs right before a `default` filter. Irrelevant if `strictVariables` is not set. Defaults to `false`.
 
-**ownPropertyOnly** hides scope variables from prototypes, useful when you're passing a not sanitized object into LiquidJS or need to hide prototypes from templates. Defaults to `false`.
+**ownPropertyOnly** hides scope variables from prototypes, useful when you're passing a not sanitized object into LiquidJS or need to hide prototypes from templates. Defaults to `true`.
 
 {% note info Non-existent Tags %}
 Non-existent tags always throw errors during parsing and this behavior can not be customized.