Remove check that interval is just one obsid (for obc sol).
I'm not immediately seeing a case where this would matter for the 'ground' solution but maybe I should just remove that check and allow multiple obsids there too. Originally the idea was that the residuals object basically mapped to an obsid but I don't think we're using that much anyway, so OK if it becomes inconsistent.
Description
Remove check that interval is just one obsid (for obc sol).
I'm not immediately seeing a case where this would matter for the 'ground' solution but maybe I should just remove that check and allow multiple obsids there too. Originally the idea was that the residuals object basically mapped to an obsid but I don't think we're using that much anyway, so OK if it becomes inconsistent.
Testing
Fixes #