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# Type of request: This is a ...

[ x ] bug report
[ ] feature request

# Detailed description

When I try to list stacks and filter the stack status, it lists all the stacks rather than filter them out.

I saw someone had this issue before and was meant to be fixed, but doesnt seem like its fixed:
- https://github.com/localstack/localstack/issues/2698

## Expected behavior

Stacks should be filtered


## Actual behavior

All stacks are returned

# Steps to reproduce

Run latest docker version of localstack.
Create new stack
Try to run something like:
aws --endpoint-url=http://localhost:4566 cloudformation list-stacks --stack-status-filter DELETE_FAILED

It will return all stacks when it should return an empty list

## Command used to start LocalStack
docker run --network host -d -e DEFAULT_REGION="eu-west-1" localstack/localstack:latest

## Client code (AWS SDK code snippet, or sequence of "awslocal" commands)
aws --endpoint-url=http://localhost:4566 cloudformation list-stacks --stack-status-filter DELETE_FAILED

Using boto3, the same thing happens:
response = self.__cloudformation_client.list_stacks(StackStatusFilter=['CREATE_FAILED'])

...

stack_name = req_params.get('StackName')
    state = CloudFormationRegion.get()
    events = []
    for stack_id, stack in state.stacks.items():
        if stack_name in [None, stack.stack_name, stack.stack_id]:
            events.extend(stack.events)
    return {'StackEvents': {'member': events}}
def delete_change_set(req_params):
    stack_name = req_params.get('StackName')
    cs_name = req_params.get('ChangeSetName')
    change_set = find_change_set(cs_name, stack_name=stack_name)
    if not change_set:
        return not_found_error('Unable to find change set "%s" for stack "%s"' % (cs_name, stack_name))
    change_set.stack.change_sets = [cs for cs in change_set.stack.change_sets if cs.change_set_name != cs_name]
    return {}
def get_template(req_params):
    stack_name = req_params.get('StackName')
    cs_name = req_params.get('ChangeSetName')
    stack = find_stack(stack_name)
    if cs_name:
        stack = find_change_set(stack_name, cs_name)
    if not stack:
        return stack_not_found_error(stack_name)
    result = {'TemplateBody': json.dumps(stack._template_raw)}
    return result
def get_template_summary(req_params):