No. Series page closes when Code has special chars (#2577)

<!-- Thank you for submitting a Pull Request. If you're new to
contributing to BCApps please read our pull request guideline below
* https://github.com/microsoft/BCApps/Contributing.md
-->
#### Summary <!-- Provide a general summary of your changes -->
No. Series page closes unexpectedly when the No. Series Code contains
special chars like &
#### Work Item(s) <!-- Add the issue number here after the #. The issue
needs to be open and approved. Submitting PRs with no linked issues or
unapproved issues is highly discouraged. -->
Fixes
[AB#560982](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/560982)

src/Business Foundation/App/NoSeries/src/Setup/NoSeriesSetupImpl.Codeunit.al

@@ -142,16 +142,16 @@ codeunit 305 "No. Series - Setup Impl."
     var
         NoSeriesLine2: Record "No. Series Line";
         NoSeries: Codeunit "No. Series";
-        NoSeriesCodeFilter: Text;
+        PreEventFilter, PostEventFilter : Text;
     begin
         NoSeriesLine2.SetCurrentKey("Series Code", "Starting Date");
         NoSeriesLine2.SetRange("Starting Date", 0D, StartingDate);
         NoSeriesLine2.SetRange("Series Code", NoSeriesCode);
+        PreEventFilter := NoSeriesLine2.GetFilter("Series Code");
         NoSeries.OnSetNoSeriesLineFilters(NoSeriesLine2);
-        if NoSeriesCode <> '' then
-            NoSeriesCodeFilter := NoSeriesLine2.GetFilter("Series Code");
-        if NoSeriesCodeFilter <> NoSeriesCode then
-            Error(CodeFieldChangedErr, NoSeriesLine2.FieldCaption("Series Code"), NoSeriesCode, NoSeriesCodeFilter);
+        PostEventFilter := NoSeriesLine2.GetFilter("Series Code");
+        if PreEventFilter <> PostEventFilter then
+            Error(CodeFieldChangedErr, NoSeriesLine2.FieldCaption("Series Code"), PreEventFilter, PostEventFilter);
 
         NoSeriesLine.SetCurrentKey("Series Code", "Starting Date");
         NoSeriesLine.CopyFilters(NoSeriesLine2);