From c384930a42ebb70d58e6789e6f69e6cdc0b63094 Mon Sep 17 00:00:00 2001
From: Antonino Ficarra <163297777+Antonino-Ficarra@users.noreply.github.com>
Date: Mon, 7 Oct 2024 13:49:20 +0200
Subject: [PATCH] Update MatchingPowers.m2

---
 M2/Macaulay2/packages/MatchingPowers.m2 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/M2/Macaulay2/packages/MatchingPowers.m2 b/M2/Macaulay2/packages/MatchingPowers.m2
index b2370ffb8c..674d7323d6 100644
--- a/M2/Macaulay2/packages/MatchingPowers.m2
+++ b/M2/Macaulay2/packages/MatchingPowers.m2
@@ -189,6 +189,7 @@ matchingProduct (Ideal,Ideal) := (I,J) -> (
                    if (set support u)*(set support v)===set{} then l=append(l,u*v);
               );
         );
+        if ideal(l)==ideal(0_ZZ) then return ideal(0_S);
         trim ideal(l)
 );