sort option broken for nested fields

[rtfeldman]

A find on accounts with { sort: { _id: -1 }} works as expected, but if you instead do { sort: { 'profile.name': -1 }} it reverts to natural sorting order.

This is noted in a comment here: https://github.com/meteor/meteor/blob/master/packages/minimongo/minimongo.js#L47

This has recently become much more urgent now that all the account profile information has been moved to profile and can no longer be sorted without this working.

[josephers]

There's also this implementation of sorting on subkeys that's planned for review: #443

(specifically, this commit lvbreda@df0b088)

[gschmidt]

@rtfeldman, thanks for pointing out the urgency of this. @josephers, thanks for making the connection :)

We will try to get this done soon.

[n1mmy]

This is now on devel in 6deacbc (using @lvbreda's commit, thanks for the pointer @josephers)