collection2 crash with Accounts.validateLoginAttempt observed with meteor 1.2

[ArijitBee]

I am calling Accounts.createUser() on client. On server I have defined two functions:
Accounts.onCreateUser -> hook for createuser before user is created
Accounts.validateLoginAttempt -> Called whenever a login is attempted

When Accounts.createUser() on client is successful, there is auto login. But if it is unsuccessful, there is no login attempt.
It is observed that when validateLoginAttempt() is defined and a collection2 validaton fails, the server side has "exception createuser undefined.." error. Internal server error 500 is passed to client.
On preliminary investigation with node-inspector, there is a stack overflow crash on server.

If the validateLoginAttempt() is NOT defined, everything works as expected i.e. invalidation by collection2 sanitizes the error and correct error message is sent to client.

All this is observed on Meteor verson 1.2.0.2. Meteor 1.1 was working fine.

[aldeed]

It would be helpful to have a link to a simple app repo that reproduces this.

[ArijitBee]

Hi aldeed,

I created a repo at:
https://github.com/ArijitBee/error-validateLogin

This bug is observed with Meteor verson 1.2.1 and aldeed:collection2 2.5.0