How to implement repeated execution of HttpEndpoint in Elsa3?

```
builder.Root = new Sequence
{
Activities =
{
new If(context => context.GetContext() != null)
{
Then = new Fork{
Branches =
{
While.True(new Sequence(){
Activities =
{
new HttpEndpoint
{
Path = new("/dispatch-service/dispatch"),
SupportedMethods = new(new[] { HttpMethods.Post }),
CanStartWorkflow = true,
ParsedContent = new(httpRequestContext)
},
new WriteHttpResponse(){ Content=new ("111")},
}
}),// 'dispatch'
feedbackActivity,// 'feedback'
},
JoinMode = ForkJoinMode.WaitAny,
},
Else = finishActivity
}
}
};

```
As above, I want to be able to execute the 'dispatch ' method multiple times, but in fact it can only be executed once same as 'feedback'. ‘While.True’ didn't work the way I thought it would. Is there any problem with this way of writing and how to solve it? Thank you.
By the way i start workflow by 'dispatch' request.