Dispensers must now be made with new bows; skeleton drops won't work

I went to make a bunch of dispensers, and like I normally do, grabbed some from the drops chest of my skeleton grinder. The crafting table didn't accept or even recognize those bows, and in order to make the dispensers, I had to craft brand new bows.

Is this a bug, or a feature in response to the problem of the crafting table using your enchanted bow from your quickbar (even right out of your hand) when making dispensers?

For the record, all of the bows I tried using to make dispensers (after putting my enchanted bow in my ender chest for safe keeping … learned that one the hard way) were obtained since the 1.13 update, and were not holdovers from the previous version.