--- a/app/controller/grid/Messwert.js	Mon Apr 20 12:24:54 2015 +0200
+++ b/app/controller/grid/Messwert.js	Mon Apr 20 14:11:39 2015 +0200
@@ -27,6 +27,10 @@
     gridSave: function(editor, context) {
         context.record.save({
             success: function(request, response) {
+                Ext.data.StoreManager.get('messgroessen').clearFilters();
+                Ext.data.StoreManager.get('messgroessen').reload();
+                // If you don't do the reset above, the grid will only contain
+                // one row in cases in when autocompletion was used!
                 context.grid.store.reload();
                 context.grid.up('window').initData();
             },