Yarn list does not display all the parent dependencies/children dependencies

[amanandhar01]

For example:

when running: yarn list, semver is missing in the dependency tree
yo@4.3.1
│ ├─ yeoman-doctor@^5.0.0
│ ├─ yeoman-environment@^3.5.1
│ └─ yosay@^2.0.2

when running: yarn list --pattern yeoman-doctor, yo is not displayed as the parent dependency for yeoman-doctor
yarn list v1.22.19
└─ yeoman-doctor@5.0.0

when running yarn list --pattern semver, yo is not displayed as the parent dependency for yeoman-doctor
yarn list v1.22.19
└─ yeoman-doctor@5.0.0
├─ global-agent@2.2.0
│ └─ semver@7.5.4
└─ semver@5.7.2

[kailin0512]

I faced the similar issue before and this seems to be the tree parsing bug comes from
https://github.com/yarnpkg/yarn/blob/master/src/package-hoister.js

Do we have some idea where & how should we make some changes and we can help to contribute and maybe a PR for a fix? @arcanis