$ git clone -n https://gitee.com/lslwh/loongarch-kernel.git /var/lib/mock/dist-an8.7-build-271469-64139/root/chroot_tmpdir/scmroot/loongarch-kernel
Cloning into '/var/lib/mock/dist-an8.7-build-271469-64139/root/chroot_tmpdir/scmroot/loongarch-kernel'...
$ git fetch origin aec541c6248311c9ea4ab5f1c424b8df15790980:KOJI_FETCH_HEAD
From https://gitee.com/lslwh/loongarch-kernel
 * [new ref]         aec541c6248311c9ea4ab5f1c424b8df15790980 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aec541c 4.19.190-7.5