$ git clone -n http://git.inferitos.ru/rpms/gcc-toolset-12-gcc /var/lib/mock/inferit-8_10-updates-build-54475-116162/root/chroot_tmpdir/scmroot/gcc-toolset-12-gcc
Cloning into '/var/lib/mock/inferit-8_10-updates-build-54475-116162/root/chroot_tmpdir/scmroot/gcc-toolset-12-gcc'...
$ git fetch origin changed/i8c/gcc-toolset-12-gcc-12.2.1-7.8.el8_10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/gcc-toolset-12-gcc
 * [new tag]         changed/i8c/gcc-toolset-12-gcc-12.2.1-7.8.el8_10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ba6cb5 import gcc-toolset-12-gcc-12.2.1-7.8.el8_10