From 928bf37297cb5a0a5ed5393f2bdb1503e46f18a4 Mon Sep 17 00:00:00 2001
From: katikatidimon <140461101+katikatidimon@users.noreply.github.com>
Date: Tue, 27 Jan 2026 23:26:31 +0100
Subject: [PATCH] perf: avoid cloning prefix sets in `TrieWitness::compute`
 (#21352)

---
 crates/trie/trie/src/witness.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/trie/trie/src/witness.rs b/crates/trie/trie/src/witness.rs
index de444815fe..1a2dbf2d6a 100644
--- a/crates/trie/trie/src/witness.rs
+++ b/crates/trie/trie/src/witness.rs
@@ -115,9 +115,10 @@ where
         } else {
             self.get_proof_targets(&state)?
         };
+        let prefix_sets = core::mem::take(&mut self.prefix_sets);
         let multiproof =
             Proof::new(self.trie_cursor_factory.clone(), self.hashed_cursor_factory.clone())
-                .with_prefix_sets_mut(self.prefix_sets.clone())
+                .with_prefix_sets_mut(prefix_sets)
                 .multiproof(proof_targets.clone())?;
 
         // No need to reconstruct the rest of the trie, we just need to include