Do you want to request a feature or report a bug?
bug

Yarn resolutions only works with fixed versions, not dist-tags

What is the current behavior?
Yarn installs react@latest not react@next

If the current behavior is a bug, please provide the steps to reproduce.
run the yarn install on the following package.json document

{ "name": "yarn-test", "version": "1.0.0", "license": "ISC", "private": true, "resolutions": { "react": "next" }, "dependencies": { "react": "latest" } }

What is the expected behavior?
Yarn installs react@next not react@latest

Please mention your node.js, yarn and operating system version.
yarn: 1.12.3
node: 8.11.4
os: Windows 10