flask request.args contains the (?arg) with socketify wsgi

[altunyurt]

Describe the bug
I've tried flask with many other wsgi servers without any problems, but running the same application with socketify as follows, causes the app to receive query string arguments as (?arg, val) instead of (arg, val)

To Reproduce

Run a flask application containing an endpoint defined as follows

from flask import request
...
@app.route("/", methods=["GET"])
def index():
    print(request.args)
    return ""

Run the application with socketify

python -m socketify app:app -w 1 -p 9000 --interface wsgi

Request a url on the app, say: http://localhost:9000/?page=1
It will print out ImmutableMultiDict([('?page', '1')])

Expected behavior
It should print out ImmutableMultiDict([('page', '1')])
which is the correct print out when the same app is run with flask dev server or any other wsgi server.

Versions
socketify 0.0.27
flask 3.0.3
python 3.9.7