$ git clone -n https://gitee.com/src-opencloudos-rpms/vulkan-headers.git /var/lib/mock/dist-oc9-build-59743-16463/root/chroot_tmpdir/scmroot/vulkan-headers
Cloning into '/var/lib/mock/dist-oc9-build-59743-16463/root/chroot_tmpdir/scmroot/vulkan-headers'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/vulkan-headers
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a977d85 import vulkan-headers-1.3.250.0-2.tl4