Merge pull request #5875 from ZacharyRSmith/fix/eachAsync

fix: eachAsync - Treat reject() as a Promise rejection (gh-5874)

Author: vkarpov15

lib/services/cursor/eachAsync.js

@@ -30,7 +30,7 @@ module.exports = function eachAsync(next, fn, options, callback) {
     if (promise && typeof promise.then === 'function') {
       promise.then(
         function() { callback(null); },
-        function(error) { callback(error); });
+        function(error) { callback(error || new Error('`eachAsync()` promise rejected without error')); });
     } else {
       callback(null);
     }