Ticket #40242: 40242.2.diff

src/wp-admin/js/inline-edit-post.js

@@ -115 +115 @@
                 // enable autocomplete for tags
                 if ( 'post' === type ) {
                         $( 'tr.inline-editor textarea[data-wp-taxonomy]' ).each( function ( i, element ) {
+                                /*
+                                 * While Quick Edit clones the form each time, Bulk Edit always re-uses
+                                 * the same form. Let's check if an autocomplete instance already exists.
+                                 */
+                                if ( $( element ).autocomplete( 'instance' ) ) {
+                                        // jQuery equivalent of `continue` within an `each()` loop.
+                                        return;
+                                }
+
                                 $( element ).wpTagsSuggest();
                         } );
                 }

src/wp-admin/js/tags-suggest.js

@@ -120 +120 @@
                         },
                         minLength: 2,
                         position: {
-                                my: 'left top+2'
+                                my: 'left top+2',
+                                at: 'left bottom',
+                                collision: 'none'
                         },
                         messages: {
                                 noResults: window.uiAutocompleteL10n.noResults,