pnpm 5.15.2 on Node.js NPM

The lockfile's content should not "flicker" if some dependency's version is specified with build metadata #2928.
If pnpm.overrides were modified, the resolution stage may never be skipped #3079.
The pnpm section of options is not included in the published version of a package.json #3081.
Fix the error message that happens when trying to add a new dependency to the root of a workspace #3082.