$ git clone -n https://src.fedoraproject.org/rpms/bcm283x-firmware.git /var/lib/mock/f40-build-766334-124118/root/chroot_tmpdir/scmroot/bcm283x-firmware
Cloning into '/var/lib/mock/f40-build-766334-124118/root/chroot_tmpdir/scmroot/bcm283x-firmware'...
$ git reset --hard d9c46cac8cb9ad8784c4e528a758dbc34dc6e887
HEAD is now at d9c46ca Update to 93d3f79