$ git clone -n http://git.inferitos.ru/rpms/pkgdiff /var/lib/mock/inferit-9_3-extras-build-24077-40600/root/chroot_tmpdir/scmroot/pkgdiff
Cloning into '/var/lib/mock/inferit-9_3-extras-build-24077-40600/root/chroot_tmpdir/scmroot/pkgdiff'...
$ git fetch origin changed/i9ce/pkgdiff-1.7.2-15.el9:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/pkgdiff
 * [new tag]         changed/i9ce/pkgdiff-1.7.2-15.el9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2972c5 Merge and update to 1.7.2-15