Fix: Do not fiter event triggered by resync for application controller (#3064)

Signed-off-by: songminglong <1247768069@qq.com>

pkg/controller/core.oam.dev/v1alpha2/application/application_controller.go

@@ -398,6 +398,12 @@ func (r *Reconciler) SetupWithManager(mgr ctrl.Manager) error {
 				if !isNewApp || !isOldApp {
 					return filterManagedFieldChangesUpdate(e)
 				}
+
+				// We think this event is triggered by resync
+				if reflect.DeepEqual(old, new) {
+					return true
+				}
+
 				// filter managedFields changes
 				new.ManagedFields = old.ManagedFields