Resolve "User activity is stuck loading when there is none"

app/assets/javascripts/pages/users/user_overview_block.js

@@ -29,18 +29,21 @@ export default class UserOverviewBlock {
 
   render(data) {
     const { html, count } = data;
-    const contentList = document.querySelector(`${this.container} .overview-content-list`);
+    const containerEl = document.querySelector(this.container);
+    const contentList = containerEl.querySelector('.overview-content-list');
 
     contentList.innerHTML += html;
 
-    const loadingEl = document.querySelector(`${this.container} .loading`);
+    const loadingEl = containerEl.querySelector('.loading');
 
     if (count && count > 0) {
-      document.querySelector(`${this.container} .js-view-all`).classList.remove('hide');
+      containerEl.querySelector('.js-view-all').classList.remove('hide');
     } else {
-      document
-        .querySelector(`${this.container} .nothing-here-block`)
-        .classList.add('text-left', 'p-0');
+      const nothingHereBlock = containerEl.querySelector('.nothing-here-block');
+
+      if (nothingHereBlock) {
+        nothingHereBlock.classList.add('text-left', 'p-0');
+      }
     }
 
     loadingEl.classList.add('hide');

app/views/events/_events.html.haml

-= render partial: 'events/event', collection: @events
+- if @events.present?
+  = render partial: 'events/event', collection: @events
+- else
+  .nothing-here-block= _("No activities found")

changelogs/unreleased/55755-user-activity-is-stuck-loading-when-there-is-none.yml

+---
+title: Hide spinner on empty activites list on user profile overview
+merge_request: 24063
+author:
+type: other

locale/gitlab.pot

@@ -4416,6 +4416,9 @@ msgstr ""
 msgid "No"
 msgstr ""
 
+msgid "No activities found"
+msgstr ""
+
 msgid "No assignee"
 msgstr ""
 

spec/features/users/overview_spec.rb

@@ -33,6 +33,8 @@ describe 'Overview tab on a user profile', :js do
 
       it 'does not show any entries in the list of activities' do
         page.within('.activities-block') do
+          expect(page).to have_selector('.loading', visible: false)
+          expect(page).to have_content('No activities found')
           expect(page).not_to have_selector('.event-item')
         end
       end
@@ -93,6 +95,7 @@ describe 'Overview tab on a user profile', :js do
 
       it 'it shows an empty project list with an info message' do
         page.within('.projects-block') do
+          expect(page).to have_selector('.loading', visible: false)
           expect(page).to have_content('No projects found')
           expect(page).not_to have_selector('.project-row')
         end