* arts-2-1-472

* src/interpolation_poly.cc (gridpos_poly_longitudinal):

Add missing call to chk_interpolation_grids for the case when
the lons don't have to be shifted. Fixes bug reported by Jana.

git-svn-id: https://www.sat.ltu.se/svn/rt/arts/trunk@8150 aaf1aab0-4228-0410-ad68-8dceda47f409