Skip non-collection urls in process links service (#38351)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

app/services/process_links_service.rb

@@ -28,6 +28,7 @@ class ProcessLinksService < BaseService
 
       # TODO: We probably want to resolve unknown objects at authoring time
       object = ActivityPub::TagManager.instance.uri_to_resource(url.to_s, Collection)
+      next if object.nil?
 
       tagged_object = @previous_objects.find { |x| x.object == object || x.uri == url }
       tagged_object ||= @current_objects.find { |x| x.object == object || x.uri == url }

spec/services/process_links_service_spec.rb

@@ -16,4 +16,13 @@ RSpec.describe ProcessLinksService do
         .to change { status.tagged_objects.count }.by(1)
     end
   end
+
+  context 'when status has a generic link' do
+    let(:status) { Fabricate(:status, account: account, text: 'Hello check out my personal web page: https://example.com/test', visibility: :public) }
+
+    it 'skips the link and does not create a tagged object' do
+      expect { expect { subject.call(status) }.to_not raise_error }
+        .to not_change { status.tagged_objects.count }.from(0)
+    end
+  end
 end