Merge branch '345725-setting-labels-in-issue-board-produces-garbled-results' into 'master'

Resolve "Setting labels in issue board produces garbled results."

See merge request gitlab-org/gitlab!74723

app/assets/javascripts/vue_shared/components/sidebar/labels_select_vue/labels_select_root.vue

@@ -179,6 +179,8 @@ export default {
 
     document.addEventListener('mousedown', this.handleDocumentMousedown);
     document.addEventListener('click', this.handleDocumentClick);
+
+    this.updateLabelsSetState();
   },
   beforeDestroy() {
     document.removeEventListener('mousedown', this.handleDocumentMousedown);