Cleanup

node_modules/mongoose/lib/helpers/query/completeMany.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const helpers = require('../../queryhelpers');
+const immediate = require('../immediate');
 
 module.exports = completeMany;
 
@@ -29,10 +30,10 @@ function completeMany(model, docs, fields, userProvidedFields, opts, callback) {
       error = error || _error;
     }
     if (error != null) {
-      --count || process.nextTick(() => callback(error));
+      --count || immediate(() => callback(error));
       return;
     }
-    --count || process.nextTick(() => callback(error, arr));
+    --count || immediate(() => callback(error, arr));
   }
 
   for (let i = 0; i < len; ++i) {
@@ -42,6 +43,9 @@ function completeMany(model, docs, fields, userProvidedFields, opts, callback) {
     } catch (error) {
       init(error);
     }
-    arr[i].$session(opts.session);
+
+    if (opts.session != null) {
+      arr[i].$session(opts.session);
+    }
   }
 }