add return value to bulk replaceOne

[wmestrom]

Description

Without a return value we can't use fluid bulk syntax with replaceOne statements. Example:

ops
  .find({ _id: 1}).upsert().replaceOne({ _id: 1, value: 2 })
  .find({ _id: 2}).upsert().replaceOne({ _id: 2, value: 1 })

What changed?

Added return statement to replaceOne()

Are there any files to ignore?

No

[wmestrom]

This doesn't seem to fix the problem, fluid syntax is actually broken in multiple ways.
updateOne is also broken, although it does return a value it is not of the correct type resulting in runtime errors.

[mbroadst]

Thanks @wmestrom , I made this ticket to track considering this for the next breaking change.