BIP341 txdata cannot be precomputed without spent outputs

Github-Pull: #27122
Rebased-From: 95f12de
(cherry picked from commit 95f12de)

Author: sipa

src/script/interpreter.cpp

@@ -2585,7 +2585,7 @@ void PrecomputedTransactionData::Init(const T& txTo, std::vector<CTxOut>&& spent
         hashRangeproofs = GetRangeproofsHash(txTo);
         m_bip143_segwit_ready = true;
     }
-    if (uses_bip341_taproot) {
+    if (uses_bip341_taproot && m_spent_outputs_ready) {
         // line copied from GetTransactionWeight() in src/consensus/validation.h
         // (we cannot directly use that function for type reasons)
         m_tx_weight = ::GetSerializeSize(txTo, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * (WITNESS_SCALE_FACTOR - 1) + ::GetSerializeSize(txTo, PROTOCOL_VERSION);