Fix TrustSet transaction example.

content/amount-schema.json

@@ -40,9 +40,9 @@
       {
         "label": "Token",
         "body": {
-          "currency": "${1:13.1}",
-          "value": "${2:FOO}",
-          "description": "${3:rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpns}"
+          "currency": "${1:USD}",
+          "value": "${2:100}",
+          "issuer": "${3:rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpns}"
         }
       }
     ]

content/transactions.json

@@ -212,9 +212,13 @@
     "Fee": "12",
     "Flags": 262144,
     "LastLedgerSequence": 8007750,
-    "Amount": {
-      "$value": "100",
-      "$type": "xrp"
+    "LimitAmount": {
+      "$type": "json",
+      "$value": {
+        "currency": "USD",
+        "issuer": "rsP3mgGb2tcYUrxiLFiHJiQXhsziegtwBc",
+        "value": "100"
+      }
     },
     "Sequence": 12
   }

state/transactions.ts

@@ -118,7 +118,7 @@ export const prepareTransaction = (data: any) => {
         // handle type: `json`
         if (_value && typeof _value === "object" && _value.$type === "json") {
             if (typeof _value.$value === "object") {
-                options[field] = _value.$value as any;
+                options[field] = { ..._value.$value } as any;
             } else {
                 try {
                     options[field] = JSON.parse(_value.$value);
@@ -131,7 +131,7 @@ export const prepareTransaction = (data: any) => {
             }
         }
 
-        // delete unneccesary fields
+        // delete unnecessary fields
         if (options[field] === undefined) {
             delete options[field];
         }