Bug 128796 - PPTX: File with formulas is set to modified without doing any change
Summary: PPTX: File with formulas is set to modified without doing any change
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
(earliest affected)
5.2 all versions
Hardware: All All
: medium normal
Assignee: Not Assigned
Keywords: bibisected, bisected, regression
Depends on:
Blocks: ModifiedStatus PPTX-Equations
  Show dependency treegraph
Reported: 2019-11-14 11:17 UTC by Xisco Faulí
Modified: 2022-02-09 09:01 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:
Regression By:

Minimal PPTX (30.52 KB, application/vnd.openxmlformats-officedocument.presentationml.presentation)
2020-11-20 17:34 UTC, Aron Budea

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Description Xisco Faulí 2019-11-14 11:17:06 UTC
Steps to reproduce:
1. Open attachment 142144 [details] from bug 117658
2. Close the document without doing any change

-> Save Document? dialog is prompted

Reproduced in

Build ID: 956153105bbf900f3b20aea98338148cf545fa0e
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3; 
Locale: ca-ES (ca_ES.UTF-8); UI-Language: en-US
Calc: threaded
Comment 1 Xisco Faulí 2019-11-14 11:20:28 UTC
This seems to have begun at the below commit.
Adding Cc: to Michael Stahl; Could you possibly take a look at this one? Thanks

 4e0cdc9abc7e396084596c0e5c3bc9c3a3945c14 is the first bad commit
commit 4e0cdc9abc7e396084596c0e5c3bc9c3a3945c14
Author: Norbert Thiebaud <nthiebaud@gmail.com>
Date:   Fri Jan 22 04:45:41 2016 -0800

    source sha:332a796366b7cb91dff41de4b9ffb17843112a3e

author    Michael Stahl <mstahl@redhat.com>    2016-01-21 17:39:26 +0100
committer    Michael Stahl <mstahl@redhat.com>    2016-01-21 19:42:56 +0100
commit    332a796366b7cb91dff41de4b9ffb17843112a3e (patch)
tree    b578760ddfffde56cfe9e876b3e86a0916ad79a0
parent    a73e606b8cd714520285b4e40890db9fd27d7ba5 (diff)
oox: import Math objects from PPTX files
Comment 2 Xisco Faulí 2019-11-14 11:21:01 UTC
@Miklos, since you fixed bug 117658 I thought you might be interested in this issue as well...
Comment 3 Aron Budea 2020-11-20 17:34:58 UTC
Created attachment 167425 [details]
Minimal PPTX

Attaching an even simpler sample.
Comment 4 Xisco Faulí 2022-02-09 09:01:20 UTC
Still reproducible in

Version: / LibreOffice Community
Build ID: fd2f6282cb898f4a356ea8acf3dd1129f09fc1e1
CPU threads: 8; OS: Linux 5.10; UI render: default; VCL: gtk3
Locale: es-ES (es_ES.UTF-8); UI: en-US
Calc: threaded