$ git clone -n https://gitee.com/zhangwenlong01/mutter.git /var/lib/mock/dist-an23.4-build-515972-75163/root/chroot_tmpdir/scmroot/mutter
Cloning into '/var/lib/mock/dist-an23.4-build-515972-75163/root/chroot_tmpdir/scmroot/mutter'...
$ git fetch origin eade49c49b64e3a361ed847eb56630134ba7c96e:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/mutter
 * [new ref]         eade49c49b64e3a361ed847eb56630134ba7c96e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eade49c rebuild for loongarch64