Merge pull request #2185 from tomvanenckevort/U4-10184

U4-10184 - Fixed string splitting in MultipleTextStringValueConverter.

src/Umbraco.Core/PropertyEditors/ValueConverters/MultipleTextStringValueConverter.cs

@@ -53,7 +53,7 @@ namespace Umbraco.Core.PropertyEditors.ValueConverters
             // Fall back on normal behaviour
             if (values.Any() == false)
             {
-                return sourceString.Split(Environment.NewLine.ToCharArray());
+                return sourceString.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
             }
 
             return values.ToArray();