I don't know if this is me misunderstanding how mongoid works or if it's a real bug but i'm experiencing some issues around Mongoid.override_database

here's what i do basically on app controller:

1. I retrieve an object from the default database (before_filter 1)
2. depending to that object i switch the database using Mongoid.override_database (before_filter 2)
4. other controller code happen, querying the freshly switched database
3. I set Mongoid.override_database to nil (after_filter)

sometimes everything's fine. but sometimes on the next request it tries to query the previous database instead of the default one (the one defined in mongoid.yml)

i tried to specify which database to use using with(database: Mongoid.default_session.options[:database]) to make sure my first object is correctly loaded but it appears that this one is changed too.

i feel i'm maybe misunderstanding something but in any case this is a bit confusing