🐛 Fixed tag/author removal in post settings removing multiple tags/authors

closes https://github.com/TryGhost/Ghost/issues/9575
- in 38b138d759 an `onmouseover` event handler was added for the close button in token input options which resulted in double firing in some circumstances where our code fired then the ember-power-select removal event handler also fired

app/components/gh-token-input/trigger.js

@@ -12,9 +12,11 @@ export default EmberPowerSelectMultipleTrigger.extend({
         },
 
         handleOptionMouseDown(event) {
-            let action = this.get('extra.optionMouseDown');
-            if (action) {
-                return action(event);
+            if (!event.target.closest('[data-selected-index]')) {
+                let action = this.get('extra.optionMouseDown');
+                if (action) {
+                    return action(event);
+                }
             }
         },
 

app/templates/components/gh-token-input/trigger.hbs

@@ -27,7 +27,6 @@
                     aria-label="remove element"
                     class="ember-power-select-multiple-remove-btn"
                     data-selected-index={{idx}}
-                    onmousedown={{action "chooseOption" opt}}
                 >
                     {{svg-jar "close" data-selected-index=idx}}
                 </span>