Revert "fix(model): throw error if calling create() with multiple d…

…ocs in a transaction unless `ordered: true`"

This reverts commit 3afb2ca.

lib/model.js

@@ -2619,10 +2619,6 @@ Model.create = async function create(doc, options) {
 
   delete options.aggregateErrors; // dont pass on the option to "$save"
 
-  if (options.session && !options.ordered && args.length > 1) {
-    throw new MongooseError('Cannot call `create()` with a session and multiple documents unless `ordered: true` is set');
-  }
-
   if (options.ordered) {
     for (let i = 0; i < args.length; i++) {
       try {

test/docs/transactions.test.js

@@ -660,44 +660,4 @@ describe('transactions', function() {
     const { name } = await Test.findById(_id);
     assert.strictEqual(name, 'bar');
   });
-
-  it('throws error if using `create()` with multiple docs in a transaction (gh-15091)', async function() {
-    const BookingSchema = new Schema({
-      user: mongoose.Types.ObjectId,
-      slot: mongoose.Types.ObjectId,
-      bookingFor: String,
-      moreInfo: String
-    });
-
-    // Create models
-    const Booking = db.model('Test', BookingSchema);
-
-    // Define a sample payload
-    const user = { userId: new mongoose.Types.ObjectId() };
-    const payload = {
-      slotId: new mongoose.Types.ObjectId(),
-      data: [
-        { bookingFor: 'Person A', moreInfo: 'Some info' },
-        { bookingFor: 'Person B', moreInfo: 'Other info' }
-      ]
-    };
-
-    const session = await mongoose.startSession();
-    session.startTransaction();
-
-    const bookingData = payload.data.map((obj) => ({
-      user: user.userId,
-      slot: payload.slotId,
-      bookingFor: obj.bookingFor,
-      moreInfo: obj.moreInfo
-    }));
-
-    await assert.rejects(
-      Booking.create(bookingData, { session }),
-      /Cannot call `create\(\)` with a session and multiple documents unless `ordered: true` is set/
-    );
-
-    const bookings = await Booking.create(bookingData, { session, ordered: true });
-    assert.equal(bookings.length, 2);
-  });
 });