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How to do a loop inside a loop?

I'm trying to get posts from a custom posts using WP_Query. <ul> <?php $query1 = query_posts( array( 'posts_per_page' => -1, 'post_type' => array('specialties') )); ...
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wp_reset_postdata() and wp_reset_query() inside shortcode are not working to reset original page query

I'm implementing a form for a frontend post with a shortcode. The form is processed in the same function, reloading the page: function adicionar_ninhada(){ $user_id = get_current_user_id(); if ...