$ git clone -n http://git.inferitos.ru/rpms/gcc-toolset-13-gcc /var/lib/mock/inferit-8_8-bootstrap-build-28920-49002/root/chroot_tmpdir/scmroot/gcc-toolset-13-gcc
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-28920-49002/root/chroot_tmpdir/scmroot/gcc-toolset-13-gcc'...
$ git fetch origin changed/i8c/gcc-toolset-13-gcc-13.1.1-4.3.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/gcc-toolset-13-gcc
 * [new tag]         changed/i8c/gcc-toolset-13-gcc-13.1.1-4.3.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e04569 import gcc-toolset-13-gcc-13.1.1-4.3.el8