$ git clone -n https://gitee.com/opencloudos-stream/trousers.git /var/lib/mock/dist-ocs23-rebuild-test-0-build-298656-29248/root/chroot_tmpdir/scmroot/trousers
Cloning into '/var/lib/mock/dist-ocs23-rebuild-test-0-build-298656-29248/root/chroot_tmpdir/scmroot/trousers'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/trousers
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1d1e87 Rebuilt for clarifying the packages requirement in BaseOS and AppStream