Cast exception when using $in in Mongojack 2.8

[cberkeley]

I'm having a similar issue:
Something like this where users is an array of Strings : DBQuery.in("users", Arrays.asList("user1", "user2"));
will throw this exception: java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Collection

Any idea if I'm doing something wrong or if MongoJack is trying to cast a string to a collection? I'm using version 2.8.

[ractive]

This could be the same issue as in #143.