$ git clone -n https://gitee.com/binqray/glibc-2.36.git /var/lib/mock/dist-an23-build-287007-64835/root/chroot_tmpdir/scmroot/glibc-2.36
Cloning into '/var/lib/mock/dist-an23-build-287007-64835/root/chroot_tmpdir/scmroot/glibc-2.36'...
$ git fetch origin 238be5261f0e9316da5333c1e16e007a42ca8e48:KOJI_FETCH_HEAD
From https://gitee.com/binqray/glibc-2.36
 * [new ref]         238be5261f0e9316da5333c1e16e007a42ca8e48 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 238be52 optimise spec file