Fix Gravity Form Tabindex Conflicts

gf_tabindex.php

<?php

/**
 * Fix Gravity Form Tabindex Conflicts
 */
if ( !function_exists( 'gform_tabindexer' ) ) {

	function gform_tabindexer( $tab_index, $form = false ) {
		$starting_index = 1000;
		if ( $form ) {
			add_filter( 'gform_tabindex_' . $form[ 'id' ], 'gform_tabindexer' );
		}

		return GFCommon::$tab_index >= $starting_index ? GFCommon::$tab_index : $starting_index;
	}

	add_filter( 'gform_tabindex', 'gform_tabindexer', 10, 2 );
}