Merge branch 'slash-commands-load-fix' into 'master'

Fixed slash commands not loading

## What does this MR do?

Fixes an issue with slash commands not working when the autocomplete source is loading & then the new issue button is clicked. This also fixes an issue where the autocomplete source is loaded on pages where it isn't actually needed.

## What are the relevant issue numbers?

Closes #21774, #21807

See merge request !6207

1 files changed, 21 insertions, 0 deletions

diff --git a/spec/features/projects/gfm_autocomplete_load_spec.rb b/spec/features/projects/gfm_autocomplete_load_spec.rb
new file mode 100644
index 00000000000..1921ea6d8ae
--- /dev/null
+++ b/spec/features/projects/gfm_autocomplete_load_spec.rb
@@ -0,0 +1,21 @@
+require 'spec_helper'
+
+describe 'GFM autocomplete loading', feature: true, js: true do
+  let(:project)   { create(:project) }
+
+  before do
+    login_as :admin
+
+    visit namespace_project_path(project.namespace, project)
+  end
+
+  it 'does not load on project#show' do
+    expect(evaluate_script('GitLab.GfmAutoComplete.dataSource')).to eq('')
+  end
+
+  it 'loads on new issue page' do
+    visit new_namespace_project_issue_path(project.namespace, project)
+
+    expect(evaluate_script('GitLab.GfmAutoComplete.dataSource')).not_to eq('')
+  end
+end