oops, bug

src/endpoints/vectors.js

@@ -149,6 +149,8 @@ async function queryCollection(collectionId, source, sourceSettings, searchText,
  * @returns {object} - An object that can be used as `sourceSettings` in functions that take that parameter.
  */
 function extractSourceSettings(request) {
+    const source = String(req.body.source) || 'transformers';
+
     // Extras API settings to connect to the Extras embeddings provider
     let extrasUrl = '';
     let extrasKey = '';