TNT Fuse NBT modifier is ignored

Summoning a TNT entity with the Fuse modifier will still cause the TNT to explode instantaneously. This works as intended in 1.20.2 and below, but 1.20.3+ appear to all have the issue.
This occurs on both a local world and on a server. It can be tested with the command /summon tnt ~ ~ ~ {Fuse:20} and you can see that there is no delay between it summoning and exploding.