has() and whereHas() not working with version ^3.1

[Yeenot]

php: 5.6.27
laravel/lumen-framework: 5.3.*
laravel-mongodb: ^3.1

has and whereHas are not working with two different connections (mysql and mongodb) and has an error of

Call to undefined method Illuminate\Database\Query\Builder::getRelationWithoutConstraints()

I need to maintain the php version and lumen version since it is an existing project

[divine]

See #1195