FIX: theme preview from preferences wasn't working

app/assets/javascripts/discourse/initializers/live-development.js.es6

@@ -1,45 +1,5 @@
 import DiscourseURL from 'discourse/lib/url';
-import { currentThemeKey } from 'discourse/lib/theme-selector';
-
-export function refreshCSS(node, hash, newHref, options) {
-
-  let $orig = $(node);
-
-  if ($orig.data('reloading')) {
-
-    if (options && options.force) {
-      clearTimeout($orig.data('timeout'));
-      $orig.data("copy").remove();
-    } else {
-      return;
-    }
-  }
-
-  if (!$orig.data('orig')) {
-    $orig.data('orig', node.href);
-  }
-
-  $orig.data('reloading', true);
-
-  const orig = $(node).data('orig');
-
-  let reloaded = $orig.clone(true);
-  if (hash) {
-    reloaded[0].href = orig + (orig.indexOf('?') >= 0 ? "&hash=" : "?hash=") + hash;
-  } else {
-    reloaded[0].href = newHref;
-  }
-
-  $orig.after(reloaded);
-
-  let timeout = setTimeout(()=>{
-    $orig.remove();
-    reloaded.data('reloading', false);
-  }, 2000);
-
-  $orig.data("timeout", timeout);
-  $orig.data("copy", reloaded);
-}
+import { currentThemeKey, refreshCSS } from 'discourse/lib/theme-selector';
 
 //  Use the message bus for live reloading of components for faster development.
 export default {

app/assets/javascripts/discourse/lib/theme-selector.js.es6

@@ -1,5 +1,4 @@
 import { ajax } from 'discourse/lib/ajax';
-import { refreshCSS } from 'discourse/initializers/live-development';
 const keySelector = 'meta[name=discourse_theme_key]';
 
 export function currentThemeKey() {
@@ -22,6 +21,46 @@ export function selectDefaultTheme(key) {
   }
 }
 
+export function refreshCSS(node, hash, newHref, options) {
+
+  let $orig = $(node);
+
+  if ($orig.data('reloading')) {
+
+    if (options && options.force) {
+      clearTimeout($orig.data('timeout'));
+      $orig.data("copy").remove();
+    } else {
+      return;
+    }
+  }
+
+  if (!$orig.data('orig')) {
+    $orig.data('orig', node.href);
+  }
+
+  $orig.data('reloading', true);
+
+  const orig = $(node).data('orig');
+
+  let reloaded = $orig.clone(true);
+  if (hash) {
+    reloaded[0].href = orig + (orig.indexOf('?') >= 0 ? "&hash=" : "?hash=") + hash;
+  } else {
+    reloaded[0].href = newHref;
+  }
+
+  $orig.after(reloaded);
+
+  let timeout = setTimeout(()=>{
+    $orig.remove();
+    reloaded.data('reloading', false);
+  }, 2000);
+
+  $orig.data("timeout", timeout);
+  $orig.data("copy", reloaded);
+}
+
 export function previewTheme(key) {
   if (currentThemeKey() !== key) {