Bug: the backend credit memos grid shows the refund amounts in the base currency, but they are labelled with the order currency sign

The bug is caused by absense of the base_currency_code column in the sales_creditmemo_grid table.

Without the base_currency_code column the Magento\Sales\Ui\Component\Listing\Column\Price::prepareDataSource() formats the amounts in the display currency, but actually the base_grand_total value is in the base currency.

See also: