$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-gcc.git /var/lib/mock/dist-an23-build-532559-80970/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc
Cloning into '/var/lib/mock/dist-an23-build-532559-80970/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc'...
$ git fetch origin 4750c99bd2ac00ea493fb8fd38e26db0c668fcaf:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-gcc
 * [new ref]         4750c99bd2ac00ea493fb8fd38e26db0c668fcaf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4750c99 Init