我正在执行类似这样的操作，db是Dexie表示例

var db = new Dexie("myDB");
    db.transaction("rw", ["table1", "table2", "table3"], async ()=>{
      console.log("[txn1] started");
      
      //function which reads something from db
      console.log("[txn1] reading from db");
      await read()
      
      // function which writes something in a nested transaction
      console.log("[txn1] writing to db");
      await write()
      
      console.log("[txn1] finished");
    })

    db.transaction("rw", ["table1", "table2", "table3"], async ()=>{
      console.log("[txn2] started");
      
      //function which reads something from db
      console.log("[txn2] reading from db");
      await read()
      
      // function which writes something in a nested transaction
      console.log("[txn2] writing to db");
      await write()
      
      console.log("[txn2] finished");
    })

由于事务处于相同的作用域和相同的模式，因此我希望回调不会并行执行，也就是说，输出应该

[txn1] started
    [txn1] reading from db
    [txn1] writing to db
    [txn1] finished
    [txn2] started
    [txn2] reading from db
    [txn2] writing to db
    [txn2] finished

但结果却像是

[txn1] started
    [txn1] reading from db
    [txn2] started
    [txn2] reading from db
    [txn1] writing to db
    [txn1] finished
    [txn2] writing to db
    [txn2] finished