$ git clone -n http://git.inferitos.ru/rpms/polkit-gnome /var/lib/mock/inferit-8_8-build-25186-43553/root/chroot_tmpdir/scmroot/polkit-gnome
Cloning into '/var/lib/mock/inferit-8_8-build-25186-43553/root/chroot_tmpdir/scmroot/polkit-gnome'...
$ git fetch origin changed/i8c/polkit-gnome-0.106-0.2.20170423gita0763a2.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/polkit-gnome
 * [new tag]         changed/i8c/polkit-gnome-0.106-0.2.20170423gita0763a2.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 23a997d edit changelog for import polkit-gnome-0.106-0.2.20170423gita0763a2.el8