{{-- | New release modal. | | Create only. Editing an existing release — including replacing its package — | goes to the full page, because a re-upload clears the signature and returns | the release to draft, and that is not a decision to make inside a dialog. | | Submitted by XHR so the upload has a real progress bar; the controller returns | its normal redirect either way, which the handler follows. | | Requires in scope: $version (a blank UpdateVersion for the field defaults). --}}