fix: don't trigger url remote document load if urls is provided (via #5161)

* fix: don't trigger `url` remote document load if `urls` is provided

* better test block title

src/core/index.js

@@ -148,7 +148,7 @@ module.exports = function SwaggerUI(opts) {
         system.specActions.updateUrl("")
         system.specActions.updateLoadingStatus("success")
         system.specActions.updateSpec(JSON.stringify(mergedConfig.spec))
-      } else if (system.specActions.download && mergedConfig.url) {
+      } else if (system.specActions.download && mergedConfig.url && !mergedConfig.urls) {
         system.specActions.updateUrl(mergedConfig.url)
         system.specActions.download(mergedConfig.url)
       }