fix equipping non-selectables in combat mode exiting combat mode

[gmriggs]

repro steps:

• go into combat mode

• dequip an item that isn't selectable in the 3d world (ie. a piece of armor, aetheria, or cloak)

• re-equip it

expected:

item is re-equipped as normal, similar to dequipping it

actual:

character automatically exits combat mode while re-equipping item

Thanks to ╞ô╡ for reporting this issue!