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I created an app extension and added my legacy safari extension bundle to the array provide on SFSafariExtensionBundleIdentifiersToUninstall.according to the documentation, if the legacy extension was enabled, my new app extension will be automatically enabled.I installed my legacy extension, enabled it, run the new safari app extension.the previous extension was indeed removed, but the new one was not enabled.Are there any spefic requiremnts needed in order to get the app extension enabled?