[GH Usage] The Model isn't modified when the feature flag is off

Author: mogah

src/NuGetGallery/Controllers/PackagesController.cs

@@ -752,9 +752,11 @@ public virtual async Task<ActionResult> DisplayPackage(string id, string version
             model.IsCertificatesUIEnabled = _contentObjectService.CertificatesConfiguration?.IsUIEnabledForUser(currentUser) ?? false;
             model.IsAtomFeedEnabled = _featureFlagService.IsPackagesAtomFeedEnabled();
             model.IsPackageDeprecationEnabled = _featureFlagService.IsManageDeprecationEnabled(currentUser);
-            model.IsGitHubUsageEnabled = _featureFlagService.IsGitHubUsageEnabled(currentUser);
 
-            model.GitHubDependenciesInformation = _contentObjectService.GitHubUsageConfiguration.GetPackageInformation(id);
+            if(model.IsGitHubUsageEnabled = _featureFlagService.IsGitHubUsageEnabled(currentUser))
+            {
+                model.GitHubDependenciesInformation = _contentObjectService.GitHubUsageConfiguration.GetPackageInformation(id);
+            }
 
             model.ReadMeHtml = await _readMeService.GetReadMeHtmlAsync(package);