Different git links when installing from tar.gz vs whl

[ashnair1]

• I have searched the issues of this repo and believe that this is not a duplicate.
• I have searched the documentation and believe that my question is not covered.

Issue

This builds off of #4380. I wanted to add a dependency that was a git link rooted in a subfolder. To do this, as discussed in #4567, I used poetry-core from master since I needed python-poetry/poetry-core#192.

Relevant lines in pyproject.toml:

[build-system]
requires = ["poetry-core @ git+https://github.com/python-poetry/poetry-core.git"]
build-backend = "poetry.core.masonry.api"

[tool.poetry.dependencies]
python = ">=3.7.1,<4.0"
pycocotools = {git = "https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI"}

This works for installing the package from source and from tar.gz file but not from whl and the only difference seems to be a branch tag added at the end of the git link while installing from whl. I've attached the relevant lines below

The tar.gz and whl files were created via poetry build

• From tar.gz

Collecting pycocotools@ git+https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI
  Cloning https://github.com/ashnair1/cocoapi.git to /tmp/pip-install-ylghq7w3/pycocotools_04a986d205554860a5a783224ef1f8d8
  Running command git clone --filter=blob:none -q https://github.com/ashnair1/cocoapi.git /tmp/pip-install-ylghq7w3/pycocotools_04a986d205554860a5a783224ef1f8d8
  Resolved https://github.com/ashnair1/cocoapi.git to commit 2ab05524360647addb03d0d347288cda2b41b392
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done

• From whl

Collecting pycocotools@ git+https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI@master
  Cloning https://github.com/ashnair1/cocoapi.git to /tmp/pip-install-z7v4apwo/pycocotools_16adbb699d6243728216a980f2c8a477
  Running command git clone --filter=blob:none -q https://github.com/ashnair1/cocoapi.git /tmp/pip-install-z7v4apwo/pycocotools_16adbb699d6243728216a980f2c8a477
  Resolved https://github.com/ashnair1/cocoapi.git to commit 2ab05524360647addb03d0d347288cda2b41b392
ERROR: pycocotools@ git+https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI@master from git+https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI@master (from coco-assistant==0.4.0) does not appear to be a Python project: neither 'setup.py' nor 'pyproject.toml' found.

As you can see while installing from tar.gz there is no branch tag (@master)

Collecting pycocotools@ git+https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI

whereas while installing from whl there is

Collecting pycocotools@ git+https://github.com/ashnair1/cocoapi.git#egg=pycocotools&subdirectory=PythonAPI@master

So my question is whether it is possible to not have the @master tag while installing from whl? (assuming this is the cause of the error)