$ git clone -n https://src.fedoraproject.org/rpms/TurboGears2.git /var/lib/mock/f39-build-1596440-38374/root/chroot_tmpdir/scmroot/TurboGears2
Cloning into '/var/lib/mock/f39-build-1596440-38374/root/chroot_tmpdir/scmroot/TurboGears2'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/TurboGears2.git/': Error in the HTTP2 framing layer