Fixes some bugs

Yavsc/Controllers/ManageController.cs

@@ -580,8 +580,9 @@ namespace Yavsc.Controllers
                 }
                 else ModelState.AddModelError(string.Empty, $"Access denied ({uid} vs {model.PerformerId})");
             }
-            
+            ViewBag.Activities = _dbContext.ActivityItems(new List<UserActivity>());
             ViewBag.GoogleSettings = _googleSettings;
+            model.Performer = _dbContext.Users.Single(u=>u.Id == model.PerformerId);
             return View(model);
         }
 

Yavsc/Views/Manage/SetActivity.cshtml

@@ -41,8 +41,8 @@
         var pos = loc.geometry.location;
         var lat = new Number(pos.lat);
         var lng = new Number(pos.lng);
-        $('#'+config.latId).val(lat.toLocaleString('en'));
+        $('#'+config.latId).val(lat.toLocaleString('fr'));
-        $('#'+config.longId).val(lng.toLocaleString('en'));
+        $('#'+config.longId).val(lng.toLocaleString('fr'));
         gmap.setCenter(pos);
         if (marker) { 
             marker.setMap(null);