Merge branch 'gh-16263' of github.com:sveltejs/svelte into gh-16263

Author: Rich-Harris

.changeset/light-rivers-jump.md

@@ -2,4 +2,4 @@
 'svelte': patch
 ---
 
-Store deriveds old value before updating them for consistency with directly assigned sources when reading in teardown functions
+fix: re-evaluate derived props during teardown