Freeze-immune mobs are hurt by /damage using freeze damage type

The bug:

Mobs immune to freezing will be killed by the freeze damage of the /damage command; this is unlike mobs immune to fall damage which take no damage with the fall type inserted in /damage.

Using the /damage with drowning type should not damage freeze-immune mobs.

Affected freeze-immune mobs:

• Skeleton
• Stray
• Polar Bear
• Snow Golem
• Ender dragon
• Wither

Steps to reproduce:

1. Summon any of the above-listed mobs.
2. Use the /damage command:

   /damage @e[type=!player,sort=nearest,limit=1] 30 minecraft:freeze at ~ ~ ~

Result:

The mob dies.

Expected result:

No damage is dealt, and the command returns "The entity is immune to this damage type"