to avoid unwanted deletion of local storage (by false detection of changed local…

to avoid unwanted deletion of local storage (by false detection of changed local storage) in shelf inventory app, make sure dates have same format before comparing them

shelfs/static/js/shelfs_index.js

@@ -319,7 +319,8 @@ $(document).ready(function() {
         if (
             stored_shelf !== null
             && stored_shelf.ongoing_inv_start_datetime !== undefined
-            && shelf.ongoing_inv_start_datetime !== stored_shelf.ongoing_inv_start_datetime
+            && shelf.ongoing_inv_start_datetime //stored_sheld.ongoing_inv_start_datetime MUST be cleaned for comparison
+                !== stored_shelf.ongoing_inv_start_datetime.replace("T", " ").split(".")[0]
         ) {
             localStorage.removeItem('shelf_' + shelf.id);
         }