Text gets reversed when partially underlined in Excel cell

Docs
1

I found a bug in ONLYOFFICE when editing XLSX files.

If I type a text inside an Excel cell and underline only part of the text, after saving the file the underlined part gets reversed character by character.

This does not happen if:

  • the whole text is underlined, or
  • no partial formatting is applied.

Example:

Original text (before underlining and saving):
teste para ver se o texto, esta invertendo em portugues.

After underlining only part of the sentence and saving:
teste para ver se o texto, seugutrop me odnetrevni atse.

image
image561×454 37.7 KB

As you can see, the underlined part
esta invertendo em portugues
becomes
seugutrop me odnetrevni atse

Important notes:

  • This happens only with partial underline
  • It seems related to text runs / text direction (LTR)
  • Happens inside Excel cells (XLSX)
  • The same file behaves correctly when edited in Microsoft Excel or LibreOffice

When the entire text is underlined, the problem does not occur.

Version: 8.3.3 (build:19)

2

Hello @mctvp

Please note that this version is outdated. I recommend updating your Document Server to the actual version, since I was unable to reproduce the issue according to the provided description on version 9.1.