$ git clone -n https://gitee.com/mgb01105731/texlive-base_2.git /var/lib/mock/dist-an23-build-489013-74453/root/chroot_tmpdir/scmroot/texlive-base_2
Cloning into '/var/lib/mock/dist-an23-build-489013-74453/root/chroot_tmpdir/scmroot/texlive-base_2'...
$ git fetch origin 4a6891f2bcf6784456583e0559a9dc06a0b7eea6:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/texlive-base_2
 * [new ref]         4a6891f2bcf6784456583e0559a9dc06a0b7eea6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a6891f Fix build err in loongarch and riscv