$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-gcc.git /var/lib/mock/dist-an23-build-537581-83194/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc
Cloning into '/var/lib/mock/dist-an23-build-537581-83194/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc'...
$ git fetch origin fd76b649da33cad7f4ed84bd5f583ddc8fe7d79a:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-gcc
 * [new ref]         fd76b649da33cad7f4ed84bd5f583ddc8fe7d79a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd76b64 Init