$ git clone -n https://src.fedoraproject.org/rpms/flatpak.git /var/lib/mock/f39-build-1560878-37348/root/chroot_tmpdir/scmroot/flatpak
Cloning into '/var/lib/mock/f39-build-1560878-37348/root/chroot_tmpdir/scmroot/flatpak'...
error: RPC failed; curl 16 Error in the HTTP2 framing layer
fatal: the remote end hung up unexpectedly