\Magenerds\GermanLaw\Block\AfterPrice::_getCmsLink breaks in a MultiWebsite Setup

[brosenberger]

Setup:

• Multiple website setup
• The "same" shipping cms page for every website, resulting in that the url-key e.g. shipping is used multiple times within the system
• select for each website the corresponding shipping page (a bit hard as only the title is shown in the dropdown)
• click on the shipping link within the after price text

Result:

• a 404 error page is shown

Expected:

• the shipping page is shown

Additionals:

• the link generated in the after price block has an added '|<>' within the url as the identifier of the page is stored within the configuration value
• the \Magento\Cms\Model\Config\Source\Page::toOptionArray method uses the collections toOptionIdArray() which itself adds the idfield to the value-attribute for the option as the identifier (url-key of the page) is used multiple times in \Magento\Cms\Model\ResourceModel\AbstractCollection::toOptionIdArray