Bugfix where relative URLs would no longer work due to this change

Author: KoenZomers

src/Commands/Files/GetFile.cs

@@ -1,6 +1,7 @@
 using Microsoft.SharePoint.Client;
 using PnP.Core.Model.SharePoint;
 using PnP.Framework.Utilities;
+using System;
 using System.IO;
 using System.Management.Automation;
 using System.Threading.Tasks;
@@ -66,9 +67,12 @@ protected override void ExecuteCmdlet()
                 }
             }
 
-            // We can't deal with absolute URLs
-            Url = UrlUtility.MakeRelativeUrl(Url);
-
+            if (Uri.IsWellFormedUriString(Url, UriKind.Absolute))
+            {
+                // We can't deal with absolute URLs
+                Url = UrlUtility.MakeRelativeUrl(Url);
+            }
+            
             // Remove URL decoding from the Url as that will not work. We will encode the + character specifically, because if that is part of the filename, it needs to stay and not be decoded.
             Url = Utilities.UrlUtilities.UrlDecode(Url.Replace("+", "%2B"));