Copper doors are in the #minecraft:wooden_doors tag

Bug:

Copper doors, which are not wooden, are in the #minecraft:wooden_doors block tag.

Solution:

The doors could be simply added to the #minecraft:doors tag, however, this would prevent Piglins and Villagers from opening copper doors. A potential solution would be to add a #minecraft:openable_doors tag which includes the wooden doors tag and copper doors, and have that tag be used when Piglins and Villagers search for doors.