$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-annobin.git /var/lib/mock/dist-an23-build-537736-83194/root/chroot_tmpdir/scmroot/gcc-toolset-15-annobin
Cloning into '/var/lib/mock/dist-an23-build-537736-83194/root/chroot_tmpdir/scmroot/gcc-toolset-15-annobin'...
$ git fetch origin 874f37486f57efca8b8a0dc8628a19249ab73cd8:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-annobin
 * [new ref]         874f37486f57efca8b8a0dc8628a19249ab73cd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 874f374 Init