fix test

assets/javascripts/discourse-assign/initializers/extend-for-assigns.js

@@ -703,7 +703,7 @@ function initialize(api) {
       const assigneeElements = [];
 
       const assignedHtml = (username, path) => {
-        return `<span>${htmlSafe(
+        return `<span class="assigned-to">${htmlSafe(
           I18n.t("discourse_assign.assigned_topic_to", {
             username,
             path,

test/javascripts/acceptance/assigned-topic-test.js

@@ -136,7 +136,7 @@ acceptance("Discourse Assign | Assigned topic", function (needs) {
       "shows assignment in the header"
     );
     assert.strictEqual(
-      query("#post_1 .assigned-to-group").innerText.trim(),
+      query("#post_1 .assigned-to").innerText.trim(),
       "Developers",
       "shows assignment in the first post"
     );