Index: ../trunk-jpl/src/m/classes/diagnostic.m
===================================================================
--- ../trunk-jpl/src/m/classes/diagnostic.m	(revision 15444)
+++ ../trunk-jpl/src/m/classes/diagnostic.m	(revision 15445)
@@ -113,6 +113,7 @@
 				if any(~isnan(md.diagnostic.referential(pos,:))),
 					md = checkmessage(md,['no referential should be specified for basal vertices of grounded ice']);
 				end
+				md = checkfield(md,'diagnostic.stokesreconditioning','>',0);
 			end
 		end % }}}
 		function disp(obj) % {{{