$ git clone -n https://gitee.com/src-anolis-os/glibc.git /var/lib/mock/dist-an23-build-319988-67886/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/dist-an23-build-319988-67886/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin faab9dd8a420e35703e7cdb1d6de12491585e123:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/glibc
 * [new ref]         faab9dd8a420e35703e7cdb1d6de12491585e123 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at faab9dd LoongArch: fix up spec file.