$ git clone -n https://gitee.com/lx1229207124/xorg-x11-drv-dummy.git /var/lib/mock/dist-an23-build-288135-64871/root/chroot_tmpdir/scmroot/xorg-x11-drv-dummy
Cloning into '/var/lib/mock/dist-an23-build-288135-64871/root/chroot_tmpdir/scmroot/xorg-x11-drv-dummy'...
$ git fetch origin 3df90a85b9ae33fede60db4db72eef08fe242bef:KOJI_FETCH_HEAD
From https://gitee.com/lx1229207124/xorg-x11-drv-dummy
 * [new ref]         3df90a85b9ae33fede60db4db72eef08fe242bef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3df90a8 spec: add doc sub package