I'll add a note about it. Yes, messy.

@@ -35,0 +36 @@
+<s_inf>むにん only adj-no</s_inf>

ぶにん - daijr: "人がいないこと。人手が足りないこと。また，そのさま。"
      - prog (sense 2): "その島は無人だ  The island is uninhabited."

It appears that ぶにん does also apply to sense 1.
I take Rene's point about むにん, though. Not sure what the best solution is.

Is sense 1 ever read  ぶにん? I can see むにん, but not ぶにん, which seems to be only associated with sense 2.
Perhaps it's better split.

FWICT, there's no evidence that むにん is adj-na, so the differing PoS means that these have to be split based on the pos differences, but it's messy:
* むじん
 [adj-no,n]
 sense 1 only
* ぶにん
 [adj-na,n]
 both senses
* むにん
 [adj-no,n]
 both senses

temp