$ git clone -n https://src.fedoraproject.org/rpms/python-nbclient.git /var/lib/mock/f38-build-side-42-init-devel-936895-28757/root/chroot_tmpdir/scmroot/python-nbclient
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-936895-28757/root/chroot_tmpdir/scmroot/python-nbclient'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/python-nbclient.git/': Error in the HTTP2 framing layer