$ git clone -n http://git.inferitos.ru/rpms/mock-core-configs /var/lib/mock/inferit-8_8-bootstrap-build-29330-50420/root/chroot_tmpdir/scmroot/mock-core-configs
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-29330-50420/root/chroot_tmpdir/scmroot/mock-core-configs'...
$ git fetch origin changed/i8e/mock-core-configs-39.3-1.el8.inferit:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mock-core-configs
 * [new tag]         changed/i8e/mock-core-configs-39.3-1.el8.inferit -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 756cca9 Updapted for MSVSphere 8