From 4e4d5371ecf006449dcdd4e85670fbe286a28658 Mon Sep 17 00:00:00 2001
From: matst80 <mats.tornberg@gmail.com>
Date: Sun, 12 Oct 2025 23:25:28 +0200
Subject: [PATCH] store reference to cart

---
 cart-grain-pool.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cart-grain-pool.go b/cart-grain-pool.go
index 54f54f1..1da0173 100644
--- a/cart-grain-pool.go
+++ b/cart-grain-pool.go
@@ -465,6 +465,9 @@ func (p *CartPool) getOrClaimGrain(id uint64) (*CartGrain, error) {
 	if err != nil {
 		return nil, err
 	}
+	p.localMu.Lock()
+	p.grains[id] = grain
+	p.localMu.Unlock()
 	go p.broadcastOwnership([]uint64{id})
 	return grain, nil
 }