[Koha] Problem with BarcodeFallbackSearch

[Nombre]

Hello all.

I'm testing checkouts and returns. I have configured
itemBarcodeFallbackSearch parameter as enabled.

I've tested for chekouts and runs well: if I type the title instead of
barcode I get a button with the title and barcode to select. But for
returns it seems doesn't work: the only way to select the item is typing
the barcode.

Shouldn't be the correct behaviour to show a list of items when I type
the title or author?

Regards and thanks in adanced