fix: add all members to channel when it is no longer token-gated

protocol/communities/community.go

@@ -2213,6 +2213,8 @@ func (o *Community) updateTokenPermission(permission *protobuf.CommunityTokenPer
 	return changes, nil
 }
 
+const pkStringLength = 68
+
 func (o *Community) deleteTokenPermission(permissionID string) (*CommunityChanges, error) {
 	permission, exists := o.config.CommunityDescription.TokenPermissions[permissionID]
 	if !exists {
@@ -2222,6 +2224,19 @@ func (o *Community) deleteTokenPermission(permissionID string) (*CommunityChange
 	delete(o.config.CommunityDescription.TokenPermissions, permissionID)
 
 	changes := o.emptyCommunityChanges()
+
+	for _, chatID := range permission.ChatIds {
+		// if channel token permissions have been removed, add back all members to the channel
+		if !o.ChannelHasTokenPermissions(chatID) {
+			channelID := chatID[pkStringLength:] // FIXME: permission.ChatIds should be already stripped
+			var err error
+			changes, err = o.populateChatWithAllMembers(channelID)
+			if err != nil {
+				return changes, err
+			}
+		}
+	}
+
 	changes.TokenPermissionsRemoved[permissionID] = permission
 	return changes, nil
 }