From f553bd96694dce7515cd9c9faa4e0de4cf26ee27 Mon Sep 17 00:00:00 2001
From: str-mv <strmax20@gmail.com>
Date: Thu, 25 Nov 2021 09:34:55 +0000
Subject: [PATCH] CORE-242


---
--- a/pallets/nonfungible/src/lib.rs
+++ b/pallets/nonfungible/src/lib.rs
@@ -177,6 +177,15 @@
 			.checked_add(1)
 			.ok_or(ArithmeticError::Overflow)?;
 
+		let balance = <AccountBalance<T>>::get((collection.id, sender))
+			.checked_sub(1)
+			.ok_or(ArithmeticError::Overflow)?;
+
+		if balance == 0 {
+				<AccountBalance<T>>::remove((collection.id, sender));
+			} else {
+				<AccountBalance<T>>::insert((collection.id, sender), balance);
+			}
 		// =========
 
 		<Owned<T>>::remove((collection.id, &token_data.owner, token));

-- 
gitstuff