[Bug?]: peer dependency no longer guarantees to be the exactly the same one as the one used by the ancestor

### Self-service



- [ ] I'd be willing to implement a fix



### Describe the bug



hi!

First of all thanks for all your great work!



I found that after converting few projects to yarn workspaces the behavior of `peerDependencies` has changed: it's no longer guaranteed that used peer dependency in some workspace is exactly the same as in another workspace that consumes the 1st workspace. While [docs](https://yarnpkg.com/advanced/lexicon#peer-dependency) say that they should be the same.



I've tried to add reproduction but messed up with filesystem somewhere. Though I assume it's clear what behavior I expect (if not, please, let me know, I'll do smth about it).



Would be very thankful for any advice.



The final aim: to be able to have different versions of `react` in `a` and `b` workspaces and make `pkg` workspace use exactly the same version of `react` depending on which workspace (`a` or `b`)  it's executed.



### To reproduce



``` js repro

const { promises: fs } = require('fs');



await fs.appendFile('.yarnrc.yml', '\nnodeLinker: node-modules\n')



// initializing workspaces

await Promise.all([fs.mkdir('a'), fs.mkdir('b'), fs.mkdir('pkg')]);

await Promise.all([

    fs.writeFile('package.json', JSON.stringify({ workspaces: ['a', 'b', 'pkg'] }, null, 2)),

    fs.writeFile(

        'pkg/package.json',

        JSON.stringify(

            {

                name: 'pkg',

                version: '0.0.0',

                peerDependencies: {

                    react: '>16.0.0',

                },

            },

            null,

            2,

        ),

    ),

    fs.writeFile(

        'a/package.json',

        JSON.stringify(

            {

                name: 'a',

                dependencies: {

                    pkg: '0.0.0',

                    react: '16.8.0',

                },

            },

            null,

            2,

        ),

    ),

    fs.writeFile(

        'b/package.json',

        JSON.stringify(

            {

                name: 'b',

                dependencies: {

                    pkg: '0.0.0',

                    react: '17.0.0',

                },

            },

            null,

            2,

        ),

    ),

]);

await yarn('install');



// initializing files

await Promise.all([

    fs.writeFile(

        'pkg/index.js',

        'module.exports = { reactVersion: require("react").version }',

    ),

    fs.writeFile(

        'a/get-react-version-from-package.js',

        `const fs = require('fs');

        fs.writeFileSync(__dirname + "/react-version.txt", require("pkg").reactVersion)`,

    ),

    fs.writeFile(

        'b/get-react-version-from-package.js',

        `const fs = require('fs');

        fs.writeFileSync(__dirname + "/react-version.txt", require("pkg").reactVersion)`,

    ),

]);



// running the files

await Promise.all([

    yarn('node', 'a/get-react-version-from-package.js'),

    yarn('node', 'b/get-react-version-from-packag

[]