Primed TNT entities that look like heads do not flash

Example command: /summon minecraft:tnt ~ ~ ~ {block_state:{Name:"minecraft:creeper_head"}}

Running this will create a Primed TNT entity that looks like a creeper head, as expected. Unlike all other blocks, however, it does not flash, which is incorrect. The correct behaviour would be for it to flash, which is what all other blocks do.