Dynamically set values in click.Choice type #2646

Is it possible to dynamically set the choices on a click.Choice option?
The added complexity here is that, depending on the value of an option set on a group, the value will change.
Here is a small example of what I am trying to achieve:

@click.group
@click.option('--env')
def init(env):
    load_command_choices(env)
    pass

@init.command
@click.option('-c', type=click.Choice(get_command_choices()))
def some_command(c):
##

This works fine when you do not provide the -c argument explicitly, but fails when you do with the following error:

Usage: app init some-command [OPTIONS]
Try 'app init some-command --help' for help.

Error: Invalid value for '-c': 'test-value' is not one of .

I have tried the following:

• Make use of a callback on the command level to fill in the data: Callback is never triggered when providing the -c argument

Kind regards