From a0f5d330255b007a1fb181b5b4388fae73c6f00e Mon Sep 17 00:00:00 2001
From: braks <78412429+bcakmakoglu@users.noreply.github.com>
Date: Thu, 13 Mar 2025 08:30:20 +0100
Subject: [PATCH 1/2] fix(core): use null as fallback id for edge source handle

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>
---
 packages/core/src/components/Edges/EdgeWrapper.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/src/components/Edges/EdgeWrapper.ts b/packages/core/src/components/Edges/EdgeWrapper.ts
index 95bb3960f..10d466ba7 100644
--- a/packages/core/src/components/Edges/EdgeWrapper.ts
+++ b/packages/core/src/components/Edges/EdgeWrapper.ts
@@ -313,7 +313,7 @@ const EdgeWrapper = defineComponent({
       updating.value = true
 
       nodeId.value = isSourceHandle ? edge.value.target : edge.value.source
-      handleId.value = (isSourceHandle ? edge.value.targetHandle : edge.value.sourceHandle) ?? ''
+      handleId.value = (isSourceHandle ? edge.value.targetHandle : edge.value.sourceHandle) ?? null
 
       edgeUpdaterType.value = isSourceHandle ? 'target' : 'source'
 

From 77ea82e1c63f6f68d75100e579834e9aaa5df06e Mon Sep 17 00:00:00 2001
From: braks <78412429+bcakmakoglu@users.noreply.github.com>
Date: Thu, 13 Mar 2025 08:31:33 +0100
Subject: [PATCH 2/2] chore(changeset): add

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>
---
 .changeset/cuddly-bugs-switch.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/cuddly-bugs-switch.md

diff --git a/.changeset/cuddly-bugs-switch.md b/.changeset/cuddly-bugs-switch.md
new file mode 100644
index 000000000..dd22e78f3
--- /dev/null
+++ b/.changeset/cuddly-bugs-switch.md
@@ -0,0 +1,5 @@
+---
+"@vue-flow/core": patch
+---
+
+Use null as fallback id for edge source handle