From cc7029d6076914c651ef5698e03303349caa936b Mon Sep 17 00:00:00 2001
From: Craig Gidney <craiggidney@google.com>
Date: Thu, 14 Mar 2024 02:12:42 -0700
Subject: [PATCH] size fix

---
 src/stim/stabilizers/conversions.inl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/stim/stabilizers/conversions.inl b/src/stim/stabilizers/conversions.inl
index 0983ca3d2..6ab5f2b17 100644
--- a/src/stim/stabilizers/conversions.inl
+++ b/src/stim/stabilizers/conversions.inl
@@ -576,7 +576,15 @@ Tableau<W> stabilizers_to_tableau(
 
     size_t used = 0;
     for (const auto &e : stabilizers) {
-        buf = e;
+        if (e.num_qubits == num_qubits) {
+            buf = e;
+        } else {
+            buf.xs.clear();
+            buf.zs.clear();
+            memcpy(buf.xs.u8, e.xs.u8, e.xs.num_u8_padded());
+            memcpy(buf.zs.u8, e.zs.u8, e.zs.num_u8_padded());
+            buf.sign = e.sign;
+        }
         buf.ref().do_circuit(elimination_instructions);
 
         // Find a non-identity term in the Pauli string past the region used by other stabilizers.