$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-gcc.git /var/lib/mock/dist-an23-build-535139-81978/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc
Cloning into '/var/lib/mock/dist-an23-build-535139-81978/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc'...
$ git fetch origin 34e4e890944442ac24eeba44571315f13824cf7e:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-gcc
 * [new ref]         34e4e890944442ac24eeba44571315f13824cf7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34e4e89 Init