An update should return the number of updated docs and not true - especially 0 in case when no doc is updated

[a4xrbj1]

The current behavior to return true on a dbCollection.updateis making some important tests of ours fail. To give an example:

const numUpdates = MpIndex.update({ _id: mpIndexDoc }, { $addToSet: { cardsIdArray: cardId } }, { tx: true, instant: true }); if (numUpdates === 0) { throw new Error(Something is wrong - No doc was being updated - mpIndex _id: ${mpIndexDoc} / ${cardId}); }

Now we're receiving true instead of a number. It's important for us to identify where our functions are trying to update a doc with a value that already exists as that is a logical error.

[JackAdams]

Yes, good point. If you've got someone who can put a PR together, I'll happily merge it.