fix: hairband attaching to wrong parent node

characters/chicken.json

@@ -0,0 +1,16 @@
+{
+  "bodyCharacteristic": "Default.04",
+  "ears": "Default",
+  "eyebrows": "Thin.BrownDark",
+  "eyes": "Large_Eyes.BrownLight",
+  "face": "Face_MakeUp_HeavyEyeliner",
+  "gloves": "Straps_Leather.BrownDark",
+  "haircut": "PonytailBraidedLong.BlondSand",
+  "headAccessory": "Hairband.Brown",
+  "mouth": "Mouth_Makeup",
+  "overtop": "Shark_Tooth_Necklace.White",
+  "pants": "HighSkirt_Punk.Brown.HiddenBelt",
+  "shoes": "ThickSandals.Brown",
+  "undertop": "Top_Wasteland_Marauder.Black",
+  "underwear": "Boxer.Black"
+}

pkg/merger/merger.go

@@ -137,10 +137,14 @@ func (m *Merger) isAttachmentPoint(node *blockymodel.Node) bool {
 	if node.IsSkeletonReference() {
 		return true
 	}
-	// Also check if it matches a bone name and has no geometry
+	// Also check if it matches a bone name and has no geometry.
+	// The matching base node must also be a non-geometry node (type "none") to avoid
+	// false matches against geometry nodes that happen to share the same name.
 	if node.Shape != nil && node.Shape.Type == "none" {
 		baseNode := findNodeByName(m.base.Nodes, node.Name)
-		return baseNode != nil
+		if baseNode != nil && baseNode.Shape != nil && baseNode.Shape.Type == "none" {
+			return true
+		}
 	}
 	return false
 }