https://bugs.documentfoundation.org/show_bug.cgi?id=172733
Bug ID: 172733
Summary: [CJK] Automatic spell checking or property changes may
cause the thickness of text decorative lines to change
(Qt/gtk)
Product: LibreOffice
Version: 27.2.0.0 alpha0+ master
Hardware: All
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
Description:
[CJK] Automatic spell checking or property changes may cause the thickness of
text decorative lines to change.(Qt/gtk)
Steps to Reproduce:
1. Open new Calc.
2. Insert "Appled" into cell A1 and set font name to "Noto Sans CJK JP".
3. Set Overline of Text decolations to "Bold".
4. Change to "Automatic spell checking". (Shift + F7)
Actual Results:
5. The overline of the text becomes thicker.
If the text is "Apple", the decorative line remains unchanged.
Expected Results:
5. The overline will remain unchanged.
Reproducible: Always
User Profile Reset: No
Additional Info:
Underline and Strikethrough also change to thicker.
This issue can be observed in CJK fonts.
With Western fonts, this defect may not appear.
The font "BIZ UDGothic" displays it as thinner.
This issue also occurs with "Changing the formatting of selected text", "Mixing
Western and CJK text", and "Line breaks within cells".
This bug can be reproduced on Linux-OS (Qt/gtk).
This issue does not occur on Windows-OS or Linux-OS (gen).
Reproducible in
[2026-06-28]
Version: 27.2.0.0.alpha0+ (X86_64)
Build ID: d47d44191df99488ebf8632053baf020907328ed
CPU threads: 2; OS: Linux 6.12; UI render: default; VCL: gtk3
Locale: ja-JP (ja_JP.UTF-8); UI: en-US
Calc: threaded
---
Not reproducible in
Version: 25.8.7.3 (X86_64)
Build ID: 30742500f2d3eb4366ac312fa33d3dcabdb3eba5
CPU threads: 2; OS: Linux 6.12; UI render: default; VCL: gtk3
Locale: ja-JP (ja_JP.UTF-8); UI: en-US
Calc: threaded
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