$ git clone -n https://gitee.com/src-anolis-os/xorg-x11-drv-dummy.git /var/lib/mock/dist-an23.3-build-413693-72745/root/chroot_tmpdir/scmroot/xorg-x11-drv-dummy
Cloning into '/var/lib/mock/dist-an23.3-build-413693-72745/root/chroot_tmpdir/scmroot/xorg-x11-drv-dummy'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/xorg-x11-drv-dummy
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b060a8b [bugfix] rebuild without useless buildrequires