$ git clone -n https://gitee.com/mgb01105731/gdb.git /var/lib/mock/dist-an23.3-build-421624-72908/root/chroot_tmpdir/scmroot/gdb
Cloning into '/var/lib/mock/dist-an23.3-build-421624-72908/root/chroot_tmpdir/scmroot/gdb'...
$ git fetch origin 19ca6cb3a9770262f801bbcd59f6a78edb7fadd1:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gdb
 * [new ref]         19ca6cb3a9770262f801bbcd59f6a78edb7fadd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 19ca6cb Update to 14.2 from 13.2