General settings page keep loading eternally if presale start/end is removed #985

	name: Code Style

	on:
	push:
	branches: [ development, master ]
	paths-ignore:
	- 'src/pretix/locale/**'
	- 'src/pretix/static/**'
	pull_request:
	branches: [ development, master ]
	paths-ignore:
	- 'src/pretix/locale/**'
	- 'src/pretix/static/**'

	jobs:
	isort:
	name: isort
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.11
	uses: actions/setup-python@v1
	with:
	python-version: 3.11
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Install system packages
	run: sudo apt update && sudo apt install gettext
	- name: Install Dependencies
	run: \|
	sed -i '/eventyay-stripe/d' pyproject.toml
	pip3 install -e ".[dev]" psycopg2-binary
	- name: Run isort
	run: isort -c .
	working-directory: ./src
	flake:
	name: flake8
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.11
	uses: actions/setup-python@v1
	with:
	python-version: 3.11
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Install system packages
	run: sudo apt update && sudo apt install gettext
	- name: Install Dependencies
	run: \|
	sed -i '/eventyay-stripe/d' pyproject.toml
	pip3 install -e ".[dev]" psycopg2-binary
	- name: Run flake8
	run: flake8 .
	working-directory: ./src

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