From a26b6d80ef734abbf3de4ebe22b838074f53f168 Mon Sep 17 00:00:00 2001
From: grieben <10453720+grieben@users.noreply.github.com>
Date: Tue, 10 Dec 2024 12:29:12 -0700
Subject: [PATCH] fix: overwrite #last_value when Spring is `.set()` with
 `{instant: true}` (#14656)

* fix: overwrite #last_value when Spring is  with

* run npx changeset
---
 .changeset/shy-carpets-rescue.md     | 5 +++++
 packages/svelte/src/motion/spring.js | 1 +
 2 files changed, 6 insertions(+)
 create mode 100644 .changeset/shy-carpets-rescue.md

diff --git a/.changeset/shy-carpets-rescue.md b/.changeset/shy-carpets-rescue.md
new file mode 100644
index 0000000000..0c7fc6687c
--- /dev/null
+++ b/.changeset/shy-carpets-rescue.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+Overwrite Spring.#last_value when using .set() with {instant: true}
diff --git a/packages/svelte/src/motion/spring.js b/packages/svelte/src/motion/spring.js
index 270fabd4c7..bc30ce9578 100644
--- a/packages/svelte/src/motion/spring.js
+++ b/packages/svelte/src/motion/spring.js
@@ -282,6 +282,7 @@ export class Spring {
 			this.#task?.abort();
 			this.#task = null;
 			set(this.#current, set(this.#target, value));
+			this.#last_value = value;
 			return Promise.resolve();
 		}