gistfile1.txt

public function unload_textdomain( $value, $domain ) {
		if ( isset( $GLOBALS['l10n'][ $domain ] ) ) {
			unset( $GLOBALS['l10n'][ $domain ] );
		}

		return $value;
	}

	public function one_time_false() {
		remove_filter( 'locale', [ $this, 'one_time_false' ] );

		return false;
	}

	private function update_rewrites( $network_wide, $insert ) {
		$blog_ids = (array) get_current_blog_id();

		if ( is_multisite() && $network_wide ) {
			$blog_ids = get_sites(
				[
					'fields' => 'ids',
				]
			);

		}
		$rewrite_objects = [];
		foreach (
			$blog_ids
			as $blog_id
		) {
			if ( is_multisite() ) {
				switch_to_blog( $blog_id );
				unset( $GLOBALS['locale'] );
				$locale = get_locale();
				unset( $GLOBALS['locale'] );
				restore_current_blog();
				add_filter( 'locale', [ $this, 'one_time_false' ] );
				add_filter( 'override_unload_textdomain', [ $this, 'unload_textdomain' ], 10, 2 );

				switch_to_locale( $locale );
				remove_filter( 'locale', [ $this, 'one_time_false' ] );
				remove_filter( 'override_unload_textdomain', [ $this, 'unload_textdomain' ] );
				switch_to_blog( $blog_id );
				$rewrite_objects[ $blog_id ] = $GLOBALS['wp_rewrite'];
				$GLOBALS['wp_rewrite']       = new \WP_Rewrite();
				do_action( "{$this->plugin->safe_slug}_multisite_before_rewrites", $blog_id );
			}

			if ( $insert ) {
				$this->plugin->request->add_rewrite_rules();
			}

			flush_rewrite_rules();
			if ( is_multisite() ) {
				do_action( "{$this->plugin->safe_slug}_multisite_after_rewrites", $blog_id );
				restore_current_blog();
				add_filter( 'override_unload_textdomain', [ $this, 'unload_textdomain' ], 10, 2 );
				restore_current_locale();
				remove_filter( 'override_unload_textdomain', [ $this, 'unload_textdomain' ] );
				$GLOBALS['wp_rewrite'] = $rewrite_objects[ $blog_id ];
			}
		}
	}