From ac325590a58abf73933b93a4c960ad78aa0ac56c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20K=C3=B6ppelmann?= <martin@gnosis.io>
Date: Thu, 1 Feb 2024 00:31:14 +0100
Subject: [PATCH] fixed insertAvatar

---
 src/multitoken-graph/Hub.sol | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/multitoken-graph/Hub.sol b/src/multitoken-graph/Hub.sol
index 4903de9..d5e3e4a 100644
--- a/src/multitoken-graph/Hub.sol
+++ b/src/multitoken-graph/Hub.sol
@@ -102,11 +102,12 @@ contract Hub is ERC1155 {
     }
 
     function insertAvatar(address avatar) internal {
+        avatars[avatar] = avatars[SENTINEL];
         avatars[SENTINEL] = avatar;
-        avatars[avatar] = SENTINEL;
     }
 
     function registerGroup(address _treasury, string calldata _name, string calldata _symbol) external {
+        require(avatars[msg.sender] == address(0));
         _registerGroup(msg.sender, standardGroupMint, _treasury, _name, _symbol);
     }
 
@@ -121,8 +122,8 @@ contract Hub is ERC1155 {
     }
 
     function registerOrganization(string calldata _name) external {
+        require(avatars[msg.sender] == address(0));
         insertAvatar(msg.sender);
-        lastMintTimes[msg.sender] = 0;
     }
 
     function trust(address _trustReceiver, uint256 _expiry) external {