fuzz: Properly initialize PrecomputedTransactionData

Author: MarcoFalke

src/test/fuzz/script_flags.cpp

@@ -31,7 +31,6 @@ void test_one_input(const std::vector<uint8_t>& buffer)
 
     try {
         const CTransaction tx(deserialize, ds);
-        const PrecomputedTransactionData txdata(tx);
 
         unsigned int verify_flags;
         ds >> verify_flags;
@@ -41,10 +40,17 @@ void test_one_input(const std::vector<uint8_t>& buffer)
         unsigned int fuzzed_flags;
         ds >> fuzzed_flags;
 
+        std::vector<CTxOut> spent_outputs;
         for (unsigned i = 0; i < tx.vin.size(); ++i) {
             CTxOut prevout;
             ds >> prevout;
+            spent_outputs.push_back(prevout);
+        }
+        PrecomputedTransactionData txdata;
+        txdata.Init(tx, std::move(spent_outputs));
 
+        for (unsigned i = 0; i < tx.vin.size(); ++i) {
+            const CTxOut& prevout = txdata.m_spent_outputs.at(i);
             const TransactionSignatureChecker checker{&tx, i, prevout.nValue, txdata};
 
             ScriptError serror;