sanic: Triggering a worker reload does not take the code change into consideration

Describe the bug Changing the code - like the response returned by a view - should be updated when the Sanic instance is reloaded (triggered either via the CLI --trigger-reload or via app.m.restart("__ALL_PROCESSES__").

Right now, it doesn’t seems to be the case

Code snippet

from sanic import Sanic
from sanic.response import text

app = Sanic('Test')

@app.get('/reload')
async def re(request):
    request.app.m.restart("__ALL_PROCESSES__")
    return text('Restart triggered')

@app.get('/')
async def index(request):
    return text('Hello world')

if __name__ == '__main__':
    app.run(host='127.0.0.1', port=1337, access_log=True, debug=True)

Expected behavior

1. Run the above code
2. Go to “http://127.0.0.1:1337/”
3. See the data : “Hello world”
4. Change the code and replace “Hello world” by something else
5. Go to “http://127.0.0.1:1337/reload”
6. The console shows that the server was restarted
7. Go back to “http://127.0.0.1:1337/”
8. The text displayed is still “Hello world”, not the new one.

(Restarting the server via the command line sanic --trigger-reload app:app has the same behavior.

Environment (please complete the following information):

• Sanic Version: 22.9.0