FIX: do not show infinite loading state on draft with new users (#20582)

plugins/chat/assets/javascripts/discourse/components/chat-live-pane.js

@@ -115,6 +115,7 @@ export default class ChatLivePane extends Component {
   @action
   loadMessages() {
     if (!this.args.channel?.id) {
+      this.loadedOnce = true;
       return;
     }
 

plugins/chat/spec/system/draft_message_spec.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+RSpec.describe "Draft message", type: :system, js: true do
+  fab!(:current_user) { Fabricate(:admin) }
+  let(:chat_page) { PageObjects::Pages::Chat.new }
+  let(:channel_page) { PageObjects::Pages::ChatChannel.new }
+  let(:drawer) { PageObjects::Pages::ChatDrawer.new }
+
+  before do
+    chat_system_bootstrap
+    sign_in(current_user)
+  end
+
+  context "when current user never interacted with other user" do
+    fab!(:user) { Fabricate(:user) }
+
+    it "opens channel info page" do
+      visit("/chat/draft-channel")
+      expect(page).to have_selector(".results")
+
+      find(".results .user:nth-child(1)").click
+
+      expect(channel_page).to have_no_loading_skeleton
+    end
+  end
+end