$ git clone -n https://gitee.com/src-anolis-os/linux-firmware.git /var/lib/mock/dist-an7_9-updates-build-357177-71057/root/chroot_tmpdir/scmroot/linux-firmware
Cloning into '/var/lib/mock/dist-an7_9-updates-build-357177-71057/root/chroot_tmpdir/scmroot/linux-firmware'...
$ git reset --hard origin/a7
HEAD is now at e713e9d Update to linux-firmware-20200421-82.git78c0348.el7_9