$ git clone -n https://gitee.com/opencloudos-stream/perl-B-COW.git /home/lib/mock/dist-ocs23-build-240228-21805/root/chroot_tmpdir/scmroot/perl-B-COW
Cloning into '/home/lib/mock/dist-ocs23-build-240228-21805/root/chroot_tmpdir/scmroot/perl-B-COW'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/perl-B-COW
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99966b0 Rebuilt for loongarch release