$ git clone -n http://git.inferitos.ru/rpms/mythes-en /var/lib/mock/inferit-8_8-build-25345-43728/root/chroot_tmpdir/scmroot/mythes-en
Cloning into '/var/lib/mock/inferit-8_8-build-25345-43728/root/chroot_tmpdir/scmroot/mythes-en'...
$ git fetch origin changed/i8c/mythes-en-3.0-23.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/mythes-en
 * [new tag]         changed/i8c/mythes-en-3.0-23.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e76404 edit changelog for import mythes-en-3.0-23.el8