FIX: prevents error with emoji autocomplete

app/assets/javascripts/discourse/app/components/d-editor.js

@@ -576,11 +576,15 @@ export default Component.extend(TextareaTextManipulation, {
 
           return resolve(options);
         })
-          .then((list) =>
-            list.map((code) => {
+          .then((list) => {
+            if (list === SKIP) {
+              return [];
+            }
+
+            return list.map((code) => {
               return { code, src: emojiUrlFor(code) };
-            })
-          )
+            });
+          })
           .then((list) => {
             if (list.length) {
               list.push({ label: I18n.t("composer.more_emoji"), term });

app/assets/javascripts/discourse/tests/acceptance/emoji-test.js

@@ -1,9 +1,10 @@
 import {
   acceptance,
+  exists,
   normalizeHtml,
   queryAll,
 } from "discourse/tests/helpers/qunit-helpers";
-import { click, fillIn, visit } from "@ember/test-helpers";
+import { click, fillIn, triggerKeyEvent, visit } from "@ember/test-helpers";
 import { test } from "qunit";
 import { IMAGE_VERSION as v } from "pretty-text/emoji/version";
 
@@ -36,4 +37,23 @@ acceptance("Emoji", function (needs) {
       )
     );
   });
+
+  needs.settings({
+    emoji_autocomplete_min_chars: 2,
+  });
+
+  test("siteSetting:emoji_autocomplete_min_chars", async function (assert) {
+    await visit("/t/internationalization-localization/280");
+    await click("#topic-footer-buttons .btn.create");
+
+    await fillIn(".d-editor-input", ":s");
+    await triggerKeyEvent(".d-editor-input", "keyup", 40); // ensures a keyup is triggered
+
+    assert.notOk(exists(".autocomplete.ac-emoji"));
+
+    await fillIn(".d-editor-input", ":sw");
+    await triggerKeyEvent(".d-editor-input", "keyup", 40); // ensures a keyup is triggered
+
+    assert.ok(exists(".autocomplete.ac-emoji"));
+  });
 });