$ git clone -n https://gitee.com/insight-kernel/glibc.git /var/lib/mock/dist-an23-build-511782-75070/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/dist-an23-build-511782-75070/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin 26be27ee940a18aab52c8286b6e693b674e76681:KOJI_FETCH_HEAD
From https://gitee.com/insight-kernel/glibc
 * [new ref]         26be27ee940a18aab52c8286b6e693b674e76681 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26be27e  Backport patches from upstream  to fix performance regression