$ git clone -n http://git.inferitos.ru/rpms/perl-Image-Math-Constrain.git /var/lib/mock/inferit-9_4-aarch64-extras-build-63812-133862/root/chroot_tmpdir/scmroot/perl-Image-Math-Constrain
Cloning into '/var/lib/mock/inferit-9_4-aarch64-extras-build-63812-133862/root/chroot_tmpdir/scmroot/perl-Image-Math-Constrain'...
$ git fetch origin 8855e5de07ff41284009c1b6016b912267be239a:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/perl-Image-Math-Constrain
 * [new ref]         8855e5de07ff41284009c1b6016b912267be239a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8855e5d import perl-Image-Math-Constrain-1.02-42.el9