Crown cap AND cork?

Recently bought a new Moscato into the store, and was surprised to find out it was bottled under cork - with a crown cap on top. Any idea why a producer would do this?

To prevent catastrophic decompression at temps above 70°F. MANY people do not have great storage and those things will at least weep if not blow on a kitchen countertop in the Valley here.

Once had a customer leave a CASE in the trunk of his car and the whole thing blew corks and wine.

We’ve seen some Col Fondo Prosecco like that as well as Chiavennasca Frizzante from the Valtellina.

good advice