$ git clone -n https://src.fedoraproject.org/rpms/firecracker.git /var/lib/mock/f38-build-side-42-init-devel-1181968-30618/root/chroot_tmpdir/scmroot/firecracker
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1181968-30618/root/chroot_tmpdir/scmroot/firecracker'...
$ git fetch origin 2cf66c369879aebe6a68dd31752bcffdac9053c6:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/firecracker.git/': Error in the HTTP2 framing layer
$ git reset --hard 2cf66c369879aebe6a68dd31752bcffdac9053c6
HEAD is now at 2cf66c3 Update to version 1.4.1