fix performance degradation on handling conflict fields #298

	name: Code quality

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python 3.11
	uses: actions/setup-python@v4
	with:
	python-version: '3.11'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install tox

	- name: Run code quality tests with tox
	run: tox
	env:
	TOXENV: black,flake8,isort,mypy,docs

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