From 4d3b24fb930e0f911f8c3bee048098925360c19b Mon Sep 17 00:00:00 2001
From: kozyrevdev <73348153+kozyrevdev@users.noreply.github.com>
Date: Thu, 25 Nov 2021 18:23:18 +0000
Subject: [PATCH] Merge pull request #243 from UniqueNetwork/CORE-242


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