`poetry add` should not install dependencies from groups previously excluded using `--without`

• Poetry version: 1.7.1
• Python version: 3.11
• OS version and name: Windows 11

• [ x] I am on the latest stable Poetry version, installed using a recommended method.
• [x ] I have searched the issues of this repo and believe that this is not a duplicate.
• [x ] I have consulted the FAQ and blog for any relevant entries or release notes.

Issue

I previously excluded a group from poetry install, e.g.

poetry install --without my-optional-group

I then add a package to the main group with:

poetry add new-package

This installs all of the dependencies in my-optional-group before it installs new-package. Is this a bug or expected behaviour? How do I add just new-package still excluding all of the dependencies in my-optional-group that I don't want?

Start by reproducing the sequence with poetry install --without my-optional-group followed by poetry add new-package on Poetry 1.7.1 and Python 3.11. Trace the install and add command entry points and their tests; done means adding the package does not install dependencies from the previously excluded group.