fix(spore): Ensure proper Transaction kept

Author: WhiteR4bbitt

.changeset/twenty-years-type.md

@@ -0,0 +1,6 @@
+---
+"@ckb-ccc/spore": patch
+---
+
+fix(spore): Ensure proper Transaction kept
+  

packages/spore/src/cobuild/index.ts

@@ -164,7 +164,7 @@ export async function prepareSporeTransaction(
   }
 
   const existedActions = extractCobuildActionsFromTx(tx);
-  tx = await signer.prepareTransaction(tx);
+  tx = ccc.Transaction.from(await signer.prepareTransaction(tx));
   injectCobuild(tx, [existedActions, actions].flat());
   return tx;
 }