Unexpected behaviour between peerDependencies, peerDependenciesMeta and devDependencies

[saziri-arrow]

Hello,

I have an unexpected behaviour between peerDependencies, peerDependenciesMeta and devDependencies.

I have a library with a package.json with a peerDependacy (example lodash) :

"peerDependencies": {
"lodash": "^4.17.21"
},
"peerDependenciesMeta": {
"lodash": {
"optional": true
}
}

When I run npm install --omit-dev, lodash is not installed (correct behavior)

Now I also add lodash as a devDependancy since I want to use it in my unit tests :

"devDependencies": {
"lodash": "^4.17.21"
},

Now, when I run npm install --omit-dev, lodash package is installed (wrong behavior)

Tried with npm 9.8.1, and 10.8.1

Issue happen with any library.
Any projet who has 'lodash' as a devDependancy and use my library will have lodash installed in production

Can you fix this issue ?

[saziri-arrow]

npm/cli#7734