$ git clone -n https://gitee.com/fundawang/glibc.git /var/lib/mock/dist-an23-build-286549-64835/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/dist-an23-build-286549-64835/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin a61f564c34b535a9b487c06e654945158b296cf5:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/glibc
 * [new ref]         a61f564c34b535a9b487c06e654945158b296cf5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a61f564 Add patch for gb18030-2022 from upstream bug#30243