Prevent change of due-date when the item is under the recalled status.
Or have an alert message of some kind when the due date is being changed.
Because when the due date is changed, the recalled item reverts back to its initial status making it difficult to determine if there are requests placed on the item.

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Katie Utschig, SWITCH Library Consortium commented
Yes - one of our member libraries complained that they could Change the Due Date even though a recall had been placed on the item. I did explain that if you attempted to Renew the item that it would check for recalls, but the Changing the Due Date appears to override whatever system checks are in place.
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Can you share more information about when this happens ? The 'Change Due Date' tool does not revert the loan status, and the Renew action is indeed blocked. Can you explain in what scenario recalled item reverts back to its initial status ?
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Katie Wallis commented
Does this happen when using "change date" instead of "renew"? Because I thought being in recall status did prevent an item from being renewed.
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Manu Schwendener commented
+1