$ git clone -n https://gitee.com/liujie-answer/linux-firmware_oc8-0721.git /var/lib/mock/dist-oc8-build-245107-83266/root/chroot_tmpdir/scmroot/linux-firmware_oc8-0721
Cloning into '/var/lib/mock/dist-oc8-build-245107-83266/root/chroot_tmpdir/scmroot/linux-firmware_oc8-0721'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/liujie-answer/linux-firmware_oc8-0721
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c84155 oc: net: add linux-firmware-linkdata sub-package require