RTD with multiple allow reference args will block caculation

```fsharp

let mutable count = 0

[]
let eval ([] input: obj,[] codeRef: obj) =
async {
do! Async.Sleep(1000)
count <- count + 1
return "Hello" + count.ToString()
} /// Also not worked for `Async.StartAsTask`

```

the `A1` is only caculated once
after change `B1` number
`A1` doesn't change to "Hello2"

This issue doesn't exist when (only one allow reference arg) or running in synchronization mode

Start by reproducing the reported F# sample with two AllowReference arguments in asynchronous mode, then compare it with the one-reference and synchronous cases described in the issue. Trace why changing B1 does not recalculate A1; done means the multiple-reference case recalculates and returns the updated result.

Written by the indexing model from the issue text.