$ git clone -n http://8.131.229.236/anolis-os/linux-firmware /var/lib/mock/dist-el8-updates-build-16747-2666/root/chroot_tmpdir/scmroot/linux-firmware
Cloning into '/var/lib/mock/dist-el8-updates-build-16747-2666/root/chroot_tmpdir/scmroot/linux-firmware'...
$ git reset --hard origin/a8
HEAD is now at 29a4fff update to linux-firmware-20191202-99.gite8a0f4c9.el8_2.src.rpm