I attacked a skeletal enforcer with a half-elf paladin lvl 2 wielding a warhammer. I hit and smite. The game said it takes double damage due to it being vulnerable to bludgeoning, but I feel it also got double damage on the smite since it did 24 bludgeoning and 20 radiant. But the game never said it was vulnerable to radiant. So either the double damage applies to both, or it doesn't say it is vulnerable to radiant.
Where: "Desert" camp map
Who: half-elf paladin lvl 2 wielding a warhammer
This game was started yesterday, so fresh patch (0.4.14.b)