Does not upgrade tagged packages

[wclr]

Example of installing tagged version:

yarn add typescript@next

it installs last version with tag next (i.e typescript@2.2.0-dev.20161101) and adds to package.json (which is not compatible with NPM I think):

"typescript": "next"

Few days later version is updated: but yarn upgrade typescript, yarn add typescript@next or something doesn't upgrade this version to the last have to remove package and add it again.

[JakeGinnivan]

This is related to #2788 I think, really annoying issue as I have to remove and re-add the dependency which causes all transitive dependencies to bump at the same time causing much more churn than I would like.

[rally25rs]

Going to close this as a duplicate #2788 (even though this issue was filed first, but the other has a more detailed summary)