From 4edeec7b110a92c76d1a3eb68ca6317c8dac5ac3 Mon Sep 17 00:00:00 2001
From: str-mv <strmax20@gmail.com>
Date: Thu, 25 Nov 2021 09:52:31 +0000
Subject: [PATCH] CORE-243


---
--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -467,7 +467,11 @@
 		token: TokenId,
 		amount: u128,
 	) {
-		<Allowance<T>>::insert((collection.id, token, sender, spender), amount);
+		if amount == 0 {
+			<Allowance<T>>::remove((collection.id, token, sender, spender));
+		} else {
+			<Allowance<T>>::insert((collection.id, token, sender, spender), amount);
+		}
 		// TODO: ERC20 approval event
 		<PalletCommon<T>>::deposit_event(CommonEvent::Approved(
 			collection.id,

-- 
gitstuff