fix(uninstall): add comment explaining why branded flag is always cleared

Documents why woocommerce_paypal_branded is deleted outside the
full-reset guard, so future contributors understand the intent and do
not move it back behind the filter accidentally.

Author: Narek13

uninstall.php

@@ -42,6 +42,13 @@
 	$general_settings = $app_container->get( 'settings.data.general' );
 	assert( $general_settings instanceof GeneralSettings );
 
+	/**
+	 * Delete the branded flag unconditionally so reinstalling from a different
+	 * source (e.g. WordPress.org) does not silently re-enter branded-only mode.
+	 * Unlike most settings, this flag must be cleared on every uninstall — even
+	 * when the full-reset filter is off — because keeping it prevents merchants
+	 * from ever escaping branded-only mode without direct DB intervention.
+	 */
 	delete_option( 'woocommerce_paypal_branded' );
 
 	if ( $general_settings->reset_installation_path( 'plugin_uninstall' ) ) {