Do not show error if item is dropped on itself

src/js/filemanager.js

@@ -219,13 +219,21 @@ app.controller('FileManagerController', ['$scope', '$translate', '$timeout', 'Cl
         if (dataTransfer.getData('application/cloudron-filemanager')) {
             if ($scope.selected.length === 0) return;
 
+            var moved = 0;
+
             // move files
             async.eachLimit($scope.selected, 5, function (entry, callback) {
-                var newFilePath = sanitize(targetFolder + '/' + entry.fileName);
                 var oldFilePath = sanitize($scope.cwd + '/' + entry.fileName);
+                var newFilePath = sanitize(targetFolder + '/' + entry.fileName);
 
+                // if we drop the item on itself
+                if (oldFilePath === targetFolder) return callback();
+
+                // if nothing changes
                 if (newFilePath === oldFilePath) return callback();
 
+                moved++;
+
                 // TODO this will overwrite files in destination!
                 Client.filesRename($scope.id, $scope.type, oldFilePath, newFilePath, callback);
             }, function (error) {
@@ -233,7 +241,8 @@ app.controller('FileManagerController', ['$scope', '$translate', '$timeout', 'Cl
 
                 $scope.selected = [];
 
-                $scope.refresh();
+                // only refresh if anything has changed
+                if (moved) $scope.refresh();
             });
 
             return;