ObjectMerger always creating a unit as hero

Is there any particular reason the Object editor would create this:
//! external ObjectMerger w3u nzin UCST unam Caster uabi Aloc umdl "dummy.mdx" udgb 0 umpm 1000 umpi 1000
As a hero, rather than a unit? It happens on all the maps I've tested it on, including a blank one.

Edit: Hmmm, I've just noticed all heroes in the World Editor have capitals as their raw code and all units have lowercase.

Edit2: Yep, that is the case. Deleting this.

Edit3: It is even possible to delete a thread without loading images? Someone else had better do it.