$ git clone -n http://git.inferitos.ru/rpms/gnome-calculator /var/lib/mock/inferit-8_8-build-13826-23060/root/chroot_tmpdir/scmroot/gnome-calculator
Cloning into '/var/lib/mock/inferit-8_8-build-13826-23060/root/chroot_tmpdir/scmroot/gnome-calculator'...
$ git fetch origin changed/i8c/gnome-calculator-3.28.2-2.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/gnome-calculator
 * [new tag]         changed/i8c/gnome-calculator-3.28.2-2.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4e98d1 edit changelog for import gnome-calculator-3.28.2-2.el8