Hello,
we have just deployed copr-frontend-1.114, copr-dist-git-0.31, and copr-rpmbuild 0.6 into production.
The updated COPR stack now offers quite a cool feature - building form a .spec file directly by specifying URL or uploading it. You can even combine .src.rpm and .spec files in the URL build method (the only one that currently offers launching multiple builds at once).
copr-rpmbuild was updated to use %{disable_source_fetch 0} instead of spectool for downloading additional sources. The macro has support directly in rpm and is hence very preferred.