Done button shows when doneButtonHandler is null

[yellowtailfan]

Initial checklist

• I understand this is a bug report and questions should be posted in the Community Forum
• I searched issues and couldn’t find anything (or linked relevant results below)

Link to runnable example

No response

Steps to reproduce

1. Add an Uppy Dashboard component in React with doneButtonHandler={null}

              <Dashboard
                uppy={uppy}
                showLinkToFileUploadResult={false}
                showProgressDetails={true}
                doneButtonHandler={null}
                proudlyDisplayPoweredByUppy={false}
                disableThumbnailGenerator={true}
                width={'100%'}
                height={'40vh'}
              />

2. Drag in 5 files and click Upload
3. Wait for upload to complete

Expected behavior

Expected Done button not to appear. This was the behaviour with a previous version of Uppy.

Actual behavior

A Done button is shown. I am using the latest release of Uppy:

    "@uppy/aws-s3": "^3.6.2",
    "@uppy/core": "^3.13.0",
    "@uppy/dashboard": "^3.9.0",
    "@uppy/drag-drop": "^3.1.0",
    "@uppy/file-input": "^3.1.2",
    "@uppy/progress-bar": "^3.1.1",
    "@uppy/react": "^3.4.0",
    "@uppy/status-bar": "^3.3.3",
    "@uppy/url": "^3.6.1",