https://bugs.documentfoundation.org/show_bug.cgi?id=171433
Bug ID: 171433
Summary: FILEOPEN DOCX: broken formula because '[' was not
escaped as "\["
Product: LibreOffice
Version: 25.8.5.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: bisected, filter:docx, regression
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Blocks: 104526
Created attachment 206338
--> https://bugs.documentfoundation.org/attachment.cgi?id=206338&action=edit
forum-mso-de-50399.docx: example file now showing a basically empty formula
The problem is that the formula has disappeared.
This started in 25.8.5 due to a backport of 26.8's
commit e172a3343eae39b5d45bfb99fd88c51bfd9d7b01
Author: Pranam Lashkari on Mon Jan 5 19:32:33 2026 +0100
tdf#169843 math: OOXML set letter not interpreted correctly
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/196199
Steps to reproduce:
1.) open forum-mso-de-50399.docx in LO
You should see a couple of decent sized formulas, but instead it just shows an
error-looking result.
Found by Collabora's mso-test
Referenced Bugs:
https://bugs.documentfoundation.org/show_bug.cgi?id=104526
[Bug 104526] [META] DOCX (OOXML) formula-related issues
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