Add guard-clause to clearDirty method (#16467) #4109

	name: CI

	on:
	push:
	branches-ignore:
	- 'l10n_**'
	pull_request:
	branches-ignore:
	- 'l10n_**'

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	jobs:
	mysql-check:
	name: MySQL Check
	runs-on: ubuntu-20.04

	services:
	mysql:
	image: "mysql:5.6"

	options: >-
	--health-cmd "mysqladmin ping --silent"
	-e MYSQL_ALLOW_EMPTY_PASSWORD=yes
	-e MYSQL_DATABASE=revo_test
	ports:
	- 3306:3306

	strategy:
	matrix:
	php-version: ['5.6', '7.0', '7.1', '7.2', '7.3']

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Install PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-version }}
	extensions: pdo, pdo_mysql, zip, mysqli

	- name: Get composer cache directory
	id: composer-cache
	run: echo "::set-output name=dir::$(composer config cache-files-dir)"

	- name: Cache composer dependencies
	uses: actions/cache@v2
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-

	- name: Install dependencies
	run: composer install --no-progress --prefer-dist --optimize-autoloader

	- name: Setup MODX
	run: cd _build/test && ./generateConfigs.sh auto

	- name: Run PHPUnit
	run: vendor/bin/phpunit -c ./_build/test/phpunit.xml

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