wallet2: fix hf rules for small BP

src/wallet/wallet2.cpp

@@ -9419,7 +9419,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
   const bool bulletproof = use_fork_rules(get_bulletproof_fork(), 0);
   const rct::RCTConfig rct_config {
     bulletproof ? rct::RangeProofPaddedBulletproof : rct::RangeProofBorromean,
-    bulletproof ? (use_fork_rules(12, 0) ? 1 : 2) : 0
+    bulletproof ? (use_fork_rules(HF_VERSION_SMALLER_BP, -10) ? 2 : 1) : 0
   };
 
   const uint64_t base_fee  = get_base_fee();
@@ -10089,7 +10089,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_from(const crypton
   const bool bulletproof = use_fork_rules(get_bulletproof_fork(), 0);
   const rct::RCTConfig rct_config {
     bulletproof ? rct::RangeProofPaddedBulletproof : rct::RangeProofBorromean,
-    bulletproof ? (use_fork_rules(12, 0) ? 1 : 2) : 0,
+    bulletproof ? (use_fork_rules(HF_VERSION_SMALLER_BP, -10) ? 2 : 1) : 0
   };
   const uint64_t base_fee  = get_base_fee();
   const uint64_t fee_multiplier = get_fee_multiplier(priority, get_fee_algorithm());