https://bugzilla.wikimedia.org/show_bug.cgi?id=70571

            Bug ID: 70571
           Summary: VisualEditor: After removing the Template:Top,trying
                    to place cursor on content throws TypeError: Cannot
                    read property 'Left'/'right'/'start' of null
           Product: VisualEditor
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: Unprioritized
         Component: Editing Tools
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected],
                    [email protected], [email protected]
       Web browser: ---
   Mobile Platform: ---

Created attachment 16406
  --> https://bugzilla.wikimedia.org/attachment.cgi?id=16406&action=edit
Screenshot

Steps to reproduce:

1.Open a page with VE
2.Insert a template Top, specify a bg color code so you can see the effect
better on CE.I tried with #FFFFE0
3.Now click on Insert and Save the page
4.You will see the entire content after that template (until references list)
gets added as a Content section for that template and inherits the styling
specified in the template parameters.
5.Reopen the page
6.Reopen the transclusion dialog for that template
7.Click on the Delete icon to remove the template "Top" to just retain the
usual format of the text.
8.Click on "Apply Changes"
9.Now when you are back to CE, try to place your cursor on the content which
was part of that template

Observed Result:
It throws the following error on each click:


Uncaught TypeError: Cannot read property 'right' of null
Uncaught Error: ve.dm.Document.getNodeFromOffset(): offset 85 is out of bounds 

Page:https://en.wikipedia.org/wiki/User:RYasmeen_(WMF)/sandbox?veaction=edit

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