dont compare empty string
MODIFY
WalletWasabi.Tests/UnitTests/Transactions/TransactionFactoryTests.cs
WalletWasabi.Tests/UnitTests/Transactions/TransactionFactoryTests.cs
@@ -551,7 +551,7 @@ namespace WalletWasabi.Tests.UnitTests.Transactions
var scoins = coins.Select(x => Coin(x.Label, keys[x.KeyIndex], x.Amount, x.Confirmed, x.AnonymitySet)).ToArray();
foreach (var coin in scoins)
{
- foreach (var sameLabelCoin in scoins.Where(c => c.Label != "" && c.Label == coin.Label))
+ foreach (var sameLabelCoin in scoins.Where(c => !c.Label.IsEmpty && c.Label == coin.Label))
{
sameLabelCoin.Clusters = coin.Clusters;
}

dont compare empty string