$ git clone -n https://src.fedoraproject.org/rpms/nghttp2.git /var/lib/mock/f37-build-639598-71293/root/chroot_tmpdir/scmroot/nghttp2
Cloning into '/var/lib/mock/f37-build-639598-71293/root/chroot_tmpdir/scmroot/nghttp2'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/nghttp2.git/': Empty reply from server