Unable to create a pull request status without passing an iterationId

[henryju]

According to the documentation, it should be possible to create a PR status without specifying an iterationId: https://www.visualstudio.com/en-us/docs/integrate/api/git/pull-requests/pullrequeststatuses

Pull request statuses can be posted on the overall pull request or on the specific pull request iteration.

It is said that you can pass the iterationId, not that you should

Note that you can specify iterationId in the request body to post the status on the iteration.

But if I try:

    GitPullRequestStatus status = new GitPullRequestStatus();
    GitStatusContext context = new GitStatusContext();
    context.setGenre("Foo");
    context.setName("Bar");
    status.setContext(context);
    status.setState(statusState);
    status.setDescription(statusDescription);
    status.setTargetUrl(targetUrl);
    // Don't set iterationId on the status
    gitHttpClient.createPullRequestStatus(status, gitRepo.getId(), pullRequest.getPullRequestId());

It fails with:

com.microsoft.alm.client.model.VssServiceException: The value 0 is outside of the allowed range.
Parameter name: iterationId
Actual value was 0.
at com.microsoft.alm.visualstudio.services.webapi.WrappedException.Unwrap(WrappedException.java:193)
at com.microsoft.alm.client.VssHttpClientBase.handleResponse(VssHttpClientBase.java:235)
at com.microsoft.alm.client.VssHttpClientBase.sendRequest(VssHttpClientBase.java:213)
at com.microsoft.alm.client.VssHttpClientBase.sendRequest(VssHttpClientBase.java:218)
at com.microsoft.alm.teamfoundation.sourcecontrol.webapi.GitHttpClientBase.createPullRequestStatus(GitHttpClientBase.java:11472)

I think the problem com from the fact that GitPullRequestStatus#iterationId should be an Integer and accept null values.