DeathLootTable field doesn't validate

How to Reproduce

1. Summon a entity with invalid DeathLootTable

   /summon pig ~ ~ ~ {DeathLootTable:"minecraft:",NoAI:1b}
   

2. Read that field

   /data get entity @n[type=pig] DeathLootTable
   

Expected Behaviour

Found no elements matching DeathLootTable

Observed Behaviour

Pig has the following entity data: "minecraft:" (although it does drop nothing).