Put it better

src/isnd/Controllers/PackageVersionController.cs

@@ -23,7 +23,7 @@ namespace isn
         public async Task<IActionResult> Index(PackageVersionIndexViewModel model)
         {
             var applicationDbContext = _context.PackageVersions.Include(p => p.Package).Where(
-                p => ( model.Prerelease || p.IsPrerelease)
+                p => ( model.Prerelease || !p.IsPrerelease)
             && ((model.PackageId == null) || p.PackageId.StartsWith(model.PackageId)));
             model.Versions = await applicationDbContext.ToArrayAsync();
             return View(model);

src/isnd/Controllers/PackagesController.Put.cs

@@ -134,6 +134,19 @@ namespace isn.Controllers
                                     foreach (var v in pkgvers.ToArray())
                                         _dbContext.PackageVersions.Remove(v);
                                 }
+                                if (types==null || types.Count==0)
+                                _dbContext.PackageVersions.Add
+                                (new PackageVersion{
+
+                                        Package = package,
+                                        Major = version.Major,
+                                        Minor = version.Minor,
+                                        Patch = version.Patch,
+                                        IsPrerelease = version.IsPrerelease,
+                                        FullString = version.ToFullString(),
+                                        Type = "<null-type>"
+                                });
+                                else
                                 foreach (var type in types)
                                 {
                                     var pkgver = new PackageVersion
@@ -148,6 +161,7 @@ namespace isn.Controllers
                                     };
                                     _dbContext.PackageVersions.Add(pkgver);
                                 }
+
                                 await _dbContext.SaveChangesAsync();
 
                                 _logger.LogInformation($"new package : {nuspec.Name}");