When you go to add one of the equipment kits (Fighter's Kit, etc.) tom a small character instead of items being added to inventory location "Backpack" they get added to location "Other".
The gear is not equipped as it is looking for a Backpack, but for a small character, that backpack will be Backpack (small). Interestingly I found a todo from some time ago in the code indicating that this was an identified problem to be solved
When applying the kit, it now checks for an equipment item that either has the required key, or is built from an item (i.e. has a base item) with the key.
I've also resolved an issue where Equipped items were disappearing and one where the total load was not being updated after the kit was applied.