Taxonomy: More specific cap check when processing category data on po…

…st save.

Props dlh.
Fixes #36379.
Built from https://develop.svn.wordpress.org/trunk@37691


git-svn-id: http://core.svn.wordpress.org/trunk@37657 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/post.php

@@ -165,6 +165,13 @@ function _wp_translate_postdata( $update = false, $post_data = null ) {
 		$post_data['post_date_gmt'] = get_gmt_from_date( $post_data['post_date'] );
 	}
 
+	if ( isset( $post_data['post_category'] ) ) {
+		$category_object = get_taxonomy( 'category' );
+		if ( ! current_user_can( $category_object->cap->assign_terms ) ) {
+			unset( $post_data['post_category'] );
+		}
+	}
+
 	return $post_data;
 }
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37690';
+$wp_version = '4.6-alpha-37691';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.