Fix caching issue where build status was not updating in project dashboard

Closes #3268

CHANGELOG

@@ -2,6 +2,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.4.0 (unreleased)
   - The default GitLab logo now acts as a loading indicator
+  - Fix caching issue where build status was not updating in project dashboard (Stan Hu)
   - Accept 2xx status codes for successful Web hook triggers (Stan Hu)
   - Fix missing date of month in network graph when commits span a month (Stan Hu)
   - Expire view caches when application settings change (e.g. Gravatar disabled) (Stan Hu)

app/views/shared/projects/_project.html.haml

@@ -4,8 +4,12 @@
 - skip_namespace = false unless local_assigns[:skip_namespace] == true
 - css_class = '' unless local_assigns[:css_class]
 - css_class += " no-description" unless project.description.present?
+- ci_commit = project.ci_commit(project.commit.sha) if ci && !project.empty_repo? && project.commit
+- cache_key = [project.namespace, project, controller.controller_name, controller.action_name, current_application_settings, 'v2.2']
+- cache_key.push(ci_commit.status) if ci_commit
+
 %li.project-row{ class: css_class }
-  = cache [project.namespace, project, controller.controller_name, controller.action_name, current_application_settings, 'v2.2'] do
+  = cache(cache_key) do
     = link_to project_path(project), class: dom_class(project) do
       - if avatar
         .dash-project-avatar
@@ -19,8 +23,7 @@
           = project.name
 
     .project-controls
-      - if ci && !project.empty_repo? && project.commit
-        - if ci_commit = project.ci_commit(project.commit.sha)
+      - if ci_commit
         = render_ci_status(ci_commit)
          
       - if stars