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Changes between Initial Version and Version 3 of Ticket #50019

-                      initial
+                      v3
 After updating my local sandbox to PHP 7.4, I started seeing errors on my Edit Page screen for my custom post type:
 Notice: Trying to access array offset on value of type bool in /[..]/wp-admin/includes/template.php on line 1079, 1080, 1081
+ Notice: Trying to access array offset on value of type bool in /[..]/wp-admin/includes/template.php on line 1079, 1080, 1081
 After some research, I narrowed down the issue to a call in one of my plugin, which removes one of the metaboxes on that screen:
+{{{
 remove_meta_box( 'profile_rolediv', 'people', 'normal' );
+}}}
 Everything had been working fine in earlier versions. Looking at the code in template.php, it looks like remove_meta_box just sets values to false, instead of removing the entry:
+{{{
 function remove_meta_box( $id, $screen, $context ) {
+  .
 …
+  .
+}
+}}}
 which then causes this line in template.php to fail:
+{{{
 $title = $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]['title'];
+}}}
 Changing line 1078 in wp-admin/includes/template.php fixes the issue:
+{{{
 } elseif ( 'sorted' == $priority && is_array( $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ] ) ) {
+}}}
 Thank you,
 Jason