[Libreoffice-bugs] [Bug 111697] New: Add Circular reference warning when opening such file in Calc

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=111697

            Bug ID: 111697
           Summary: Add Circular reference warning when opening such file
                    in Calc
           Product: LibreOffice
           Version: Inherited From OOo
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: gtimur at gmail.com

Currently when we open spreadsheet with circular reference, we are not notified
in any way, until we click in circular reference cell, when we see "Error:
Circular reference". 
https://helponline.libreoffice.org/5.4/en-US/text/scalc/05/02140000.html?&DbPAR=CALC

There could be 2 ways to raise awareness, similar to some other software:
- warning in the beginning that there are circular references in the document,
with OK to proceed and Help to explain
- permanent notification in Status Bar "Circular references found" which, when
those cells are selected, changes to current "Error: Circular reference"

Note: seems Calc doesn't have function to show circular reference cells, which
should be another bug. Once this one is confirmed.

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