Resubmit via CLI or Python API

Hey again. I like to resubmit a failed build via command line. I didn't find this option in copr --help or in https://python-copr.readthedocs.io I'd like to avoid reuploading the SRPM. In the web frontend, I just navigate to a failed build, click Resubmit - "Resubmitting a build will rebuild the same sources again." -- Miro Hrončok -- Phone: +420777974800 IRC: mhroncok