Merge branch 'fix-console-error' into 'master'

Fix canRemove check in boards sidebar

See merge request gitlab-org/gitlab!33139

app/assets/javascripts/boards/components/board_sidebar.js

@@ -54,7 +54,7 @@ export default Vue.extend({
       return this.issue.milestone ? this.issue.milestone.title : __('No milestone');
     },
     canRemove() {
-      return !this.list.preset;
+      return !this.list?.preset;
     },
     hasLabels() {
       return this.issue.labels && this.issue.labels.length;