From 424f6cf63c5c9a295ca9a3a901a96838846d0701 Mon Sep 17 00:00:00 2001
From: Braks <78412429+bcakmakoglu@users.noreply.github.com>
Date: Thu, 16 Jan 2025 11:31:33 +0100
Subject: [PATCH] fix(core): correct connection keys (#1749)

* fix(core): correct connection keys

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>

* chore(changeset): add

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>

---------

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>
---
 .changeset/strong-buttons-wink.md | 5 +++++
 packages/core/src/utils/store.ts  | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/strong-buttons-wink.md

diff --git a/.changeset/strong-buttons-wink.md b/.changeset/strong-buttons-wink.md
new file mode 100644
index 000000000..c01fb390a
--- /dev/null
+++ b/.changeset/strong-buttons-wink.md
@@ -0,0 +1,5 @@
+---
+"@vue-flow/core": patch
+---
+
+Correct connection keys.
diff --git a/packages/core/src/utils/store.ts b/packages/core/src/utils/store.ts
index f6e86e317..eb8f28312 100644
--- a/packages/core/src/utils/store.ts
+++ b/packages/core/src/utils/store.ts
@@ -171,8 +171,8 @@ export function updateConnectionLookup(connectionLookup: ConnectionLookup, edgeL
     const { source: sourceNode, target: targetNode, sourceHandle = null, targetHandle = null } = edge
 
     const connection = { edgeId: edge.id, source: sourceNode, target: targetNode, sourceHandle, targetHandle }
-    const sourceKey = `${sourceNode}-${sourceHandle}`
-    const targetKey = `${targetNode}-${targetHandle}`
+    const sourceKey = `${sourceNode}-${sourceHandle}--${targetNode}-${targetHandle}`
+    const targetKey = `${targetNode}-${targetHandle}--${sourceNode}-${sourceHandle}`
 
     addConnectionToLookup('source', connection, targetKey, connectionLookup, sourceNode, sourceHandle)
     addConnectionToLookup('target', connection, sourceKey, connectionLookup, targetNode, targetHandle)