Refactor: added a few comments

dapps/valuetransfers/packages/tangle/tangle.go

@@ -613,6 +613,7 @@ func (tangle *Tangle) propagateRejectedToTransactions(transactionID transaction.
 			}
 			metadata.setPreferred(false)
 
+			// if the transaction is not finalized, yet then we set it to finalized
 			if !metadata.Finalized() {
 				if _, err := tangle.setTransactionFinalized(metadata.ID(), EventSourceTangle); err != nil {
 					tangle.Events.Error.Trigger(err)

dapps/valuetransfers/packages/tangle/tangle_test.go

@@ -2102,6 +2102,7 @@ func TestPropagationScenario1(t *testing.T) {
 	{
 		tangle, transactions, valueObjects, _ := preparePropagationScenario1()
 
+		// initialize debugger for this test
 		debugger.ResetAliases()
 		for name, valueObject := range valueObjects {
 			debugger.RegisterAlias(valueObject.ID(), "ValueObjectID"+name)