From 20a19c8e947e5b5488a2fe4fc22cb84cbea69b72 Mon Sep 17 00:00:00 2001
From: tokebe <43009413+tokebe@users.noreply.github.com>
Date: Tue, 28 Nov 2023 14:33:44 -0500
Subject: [PATCH] fix: filter self-subclass edges

---
 src/index.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/index.ts b/src/index.ts
index cfe26747..aa85e2a4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -178,6 +178,8 @@ export default class TRAPIQueryHandler {
       subclassCuries.forEach(([original, expanded]) => {
         const subject = nodeID;
         const object = primaryIDsByOriginalID[original];
+        // Don't keep self-subclass
+        if (subject === object) return;
         const subclassEdgeID = `expanded-${subject}-subclass_of-${object}`;
         if (subclassEdgeID in this.bteGraph.edges) return;
         const subclassEdge = new KGEdge(subclassEdgeID, {