LandingManager::tryInstallDefaultSiteOnce

public function tryInstallDefaultSiteOnce(): void
{
	if (!$this->isEnabled())
	{
		return;
	}

	if (!$this->isTriedInstallDefaultSite())
	{
		// for preserve competing installations set flag before install
		$this->markTriedInstallDefaultSiteStatus();
		$success = $this->installDefaultSite();
		if (!$success)
		{
			$this->resetTriedInstallDefaultSiteStatus();
		}
	}
}