Bug fixes for handling network path (#1091)

Author: hez2010

Files/View Models/ItemViewModel.cs

@@ -305,11 +305,12 @@ private void WorkingDirectoryChanged()
 
             // If path is found to not be a library
             pathComponents = WorkingDirectory.Split("\\", StringSplitOptions.RemoveEmptyEntries).ToList();
+
             int index = 0;
+            string tag = "";
             foreach (string s in pathComponents)
             {
                 string componentLabel = null;
-                string tag = "";
                 if (s.StartsWith(App.AppSettings.RecycleBinPath))
                 {
                     // Handle the recycle bin: use the localized folder name
@@ -342,7 +343,7 @@ private void WorkingDirectoryChanged()
                 else
                 {
                     componentLabel = s;
-                    foreach (string part in pathComponents.GetRange(0, index + 1))
+                    foreach (string part in pathComponents.GetRange(index, 1))
                     {
                         tag = tag + part + @"\";
                     }

Files/Views/InstanceTabsView.xaml.cs

@@ -342,6 +342,10 @@ public async void SetSelectedTabInfo(string text, string currentPathForTabIcon =
 
         public static string NormalizePath(string path)
         {
+            if (string.IsNullOrEmpty(path))
+            {
+                return path;
+            }
             if (path.StartsWith("\\\\"))
             {
                 return path.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar).ToUpperInvariant();