$ git clone -n https://gitee.com/opencloudos-stream/alertmanager.git /var/lib/mock/dist-oc9-epol-build-81850-56165/root/chroot_tmpdir/scmroot/alertmanager
Cloning into '/var/lib/mock/dist-oc9-epol-build-81850-56165/root/chroot_tmpdir/scmroot/alertmanager'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/alertmanager
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d97b72 !3 add support for loongarch64 Merge pull request !3 from dpd/master