Merge #646: [0.17 backport] Disallow issuance calls in bitcoin mode

434067a Disallow issuance calls in bitcoin mode (Gregory Sanders)

Pull request description:

  backport of #625 for 0.17

Tree-SHA512: f90fe5ab03554362bd9307d50999061d8ec131886261784e4f44da6af89450743eef474ac23884c3ca3e931c5036980f02b2d7a1f4b8aea860bbb5bb56422bdb

src/wallet/rpcwallet.cpp

@@ -5741,6 +5741,10 @@ UniValue issueasset(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
+    if (!g_con_elementsmode) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "Issuance can only be done on elements-style chains. Note: `-regtest` is Bitcoin's regtest mode, instead try `-chain=<custom chain name>`");
+    }
+
     CAmount nAmount = AmountFromValue(request.params[0]);
     CAmount nTokens = AmountFromValue(request.params[1]);
     if (nAmount == 0 && nTokens == 0) {
@@ -5828,6 +5832,10 @@ UniValue reissueasset(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
+    if (!g_con_elementsmode) {
+        throw JSONRPCError(RPC_TYPE_ERROR, "Issuance can only be done on elements-style chains. Note: `-regtest` is Bitcoin's regtest mode, instead try `-chain=<custom chain name>`");
+    }
+
     std::string assetstr = request.params[0].get_str();
     CAsset asset = GetAssetFromString(assetstr);