When using db.collections(), if the name of the collection starts with the name of the database, and then a dot, this is cut out of the results. E.g. collection "test.foo" is returned as "foo" if the database name is "test".

I'm using the mongodb package version "^2.2.24". My underlying mongo server running locally has three collections:

> use test
switched to db test

> show collections
bar.movie
foo.movie
test.movie

When I use db.collections() this is the result I get back

bar.movie
foo.movie
movie

Attached is the script I used to reproduce the issue (given a running mongo server with collections in it, as described above).