$ git clone -n https://gitee.com/src-anolis-os/libunistring.git /var/lib/mock/dist-an8.9-build-383680-71925/root/chroot_tmpdir/scmroot/libunistring
Cloning into '/var/lib/mock/dist-an8.9-build-383680-71925/root/chroot_tmpdir/scmroot/libunistring'...
$ git fetch origin a7c48fada843569eb7644dc29574af3bfb648a0b:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libunistring
 * [new ref]         a7c48fada843569eb7644dc29574af3bfb648a0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7c48fa spec: add doc sub package