docs: update explanation about policy

Signed-off-by: mikutas <[email protected]>

docs/operator-manual/applicationset/Controlling-Resource-Modification.md

@@ -32,15 +32,13 @@ spec:
 
 ```
 
-- Policy `create-only`: Prevents ApplicationSet controller from modifying or deleting Applications.
-- Policy `create-update`: Prevents ApplicationSet controller from deleting Applications. Update is allowed.
+- Policy `create-only`: Prevents ApplicationSet controller from modifying or deleting Applications. Prevents Application controller from deleting Applications according to [ownerReferences](https://kubernetes.io/docs/concepts/overview/working-with-objects/owners-dependents/).
+- Policy `create-update`: Prevents ApplicationSet controller from deleting Applications. Update is allowed. Prevents Application controller from deleting Applications according to [ownerReferences](https://kubernetes.io/docs/concepts/overview/working-with-objects/owners-dependents/).
 - Policy `create-delete`: Prevents ApplicationSet controller from modifying Applications. Delete is allowed.
 - Policy `sync`: Update and Delete are allowed.
 
 If the controller parameter `--policy` is set, it takes precedence on the field `applicationsSync`. It is possible to allow per ApplicationSet sync policy by setting variable `ARGOCD_APPLICATIONSET_CONTROLLER_ENABLE_POLICY_OVERRIDE` to argocd-cmd-params-cm `applicationsetcontroller.enable.policy.override` or directly with controller parameter `--enable-policy-override` (default to `false`).
 
-This does not prevent deletion of Applications if the ApplicationSet is deleted
-
 ### Controller parameter
 
 To allow the ApplicationSet controller to *create* `Application` resources, but prevent any further modification, such as deletion, or modification of Application fields, add this parameter in the ApplicationSet controller: