Include ZUGFeRD invoices as valid reference documents for credit note creation
Include ZUGFeRD invoices as valid reference documents for credit note creation: a task in bird-critic-1.5-full-300 (Harbor dataset). Credit notes must reference an existing invoice. The reference-invoice lookup and the document-generator preview SQL did not include ZugferdRenderer::TYPE in the set…
The task
Credit notes must reference an existing invoice. The reference-invoice lookup and the document-generator preview SQL did not include `ZugferdRenderer::TYPE` in the set of accepted invoice document types, so ZUGFeRD invoices could never be selected as references. This backport adds ZUGFeRD to the accepted type list in…
Part of kochsnow/bird-critic-1.5-full-300.