Merge branch '45970-additional-signout-needed' into 'master'

Ensure that spec/features/issues/user_uses_slash_commands_spec tests run locally

Closes #45970

See merge request gitlab-org/gitlab-ce!18713

spec/features/issues/user_uses_slash_commands_spec.rb

@@ -161,6 +161,7 @@
 
         before do
           target_project.add_master(user)
+          gitlab_sign_out
           sign_in(user)
           visit project_issue_path(project, issue)
         end
@@ -220,6 +221,7 @@
 
         before do
           target_project.add_master(user)
+          gitlab_sign_out
           sign_in(user)
           visit project_issue_path(project, issue)
         end