$ git clone -n http://git.inferitos.ru/rpms/gcc-toolset-10-valgrind /var/lib/mock/inferit-8_8-build-side-198-26762-45365/root/chroot_tmpdir/scmroot/gcc-toolset-10-valgrind
Cloning into '/var/lib/mock/inferit-8_8-build-side-198-26762-45365/root/chroot_tmpdir/scmroot/gcc-toolset-10-valgrind'...
$ git fetch origin changed/i8c/gcc-toolset-10-valgrind-3.16.0-6.el8_4:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/gcc-toolset-10-valgrind
 * [new tag]         changed/i8c/gcc-toolset-10-valgrind-3.16.0-6.el8_4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ecd496 edit changelog for import gcc-toolset-10-valgrind-3.16.0-6.el8_4