Fix reference filters in group context

Since !18150 abstract reference filter supports also `group`
as a resource parent (not only `project`). Some reference filters,
which inherit from abstract filter, depend on parent being `project`
when checking a reference.

This patch adds explicit check of parent class to the given filters.

1 files changed, 6 insertions, 0 deletions

diff --git a/spec/lib/banzai/filter/snippet_reference_filter_spec.rb b/spec/lib/banzai/filter/snippet_reference_filter_spec.rb
index e068e02d4fc..21cf092428d 100644
--- a/spec/lib/banzai/filter/snippet_reference_filter_spec.rb
+++ b/spec/lib/banzai/filter/snippet_reference_filter_spec.rb
@@ -210,5 +210,11 @@ describe Banzai::Filter::SnippetReferenceFilter do
 
       expect(result.css('a').first.attr('href')).to eq(urls.project_snippet_url(project, snippet))
     end
+
+    it 'ignores internal references' do
+      exp = act = "See $#{snippet.id}"
+
+      expect(reference_filter(act, project: nil, group: create(:group)).to_html).to eq exp
+    end
   end
 end