switch geometric order in onelab

NonLinearEVP/NonLinearEVP.geo

@@ -409,4 +409,6 @@ EndIf
 
 If (flag_o2g==1)
   Mesh.ElementOrder = 2;
+Else
+  Mesh.ElementOrder = 1;
 EndIf

NonLinearEVP/NonLinearEVP_data.geo

@@ -56,7 +56,7 @@ DefineConstant[
   paramaille     = {4     , Name StrCat[pp4 , "0number of mesh elements per period []"]  , Highlight Str[colorpp4], Min 2, Max 10} , 
   flag_Tmesh     = {0     , Name StrCat[pp4 , "2locally structured mesh?"] , Choices {0="unstruct",1="struct"} },
   flag_o2g       = {1     , Name StrCat[pp4 , "3Geometrical order"] , Choices {0="order 1 (linear)",1="order 2 (curved)"} },
-  flag_o2i       = {1     , Name StrCat[pp4 , "4Interpolation order"] , Choices {0="order 1",1="full order 2"} },
+  flag_o2i       = {1     , Name StrCat[pp4 , "4Interpolation order"] , Choices {0="order 1",1="full order 2"}, ServerAction "ResetDatabase"},
   flag_rounding  = {1     , Name StrCat[pp4 , "5Corner rounding/0Do it!"], Choices{0,1}, ServerAction "ResetDatabase"},
   corner_rad_frac= {0.1   , Name StrCat[pp4 , "5Corner rounding/1corner radius (fraction of square side)"] , Highlight Str[colorpp2]  , Min 0.01, Max 0.49},
   flag_outEigvec = {1     , Name StrCat[pp4 , "7output eigenvector?"], Choices{0,1}},