If you start in a Dwarven-occupied hillocks, your occupation choice will not be used and you'll be considered a "soldier".
If you fast-travel once, your unit will be scrambled - appearance, attributes and inventory will be re-rolled. However, "soul" and histfig data is untouched including your name.

This must be erroneous and a consequence of squad/military mechanics and occupied sites getting in the way and wiping critical data of the unit.

To reproduce:
* Pick "Dwarf"
* Start in the dwarven-occupied Hillocks
* If you see the rest of the dwarves are decked out in military gear, you are in correct state (They must be an occupiation)
* fast-travel outside of the site, your unit data will get scrambled and you'll lose your attributes, appearance and inventory.