https://bugs.documentfoundation.org/show_bug.cgi?id=145877

            Bug ID: 145877
           Summary: OLE Equation data loss
           Product: LibreOffice
           Version: 7.1.4.2 release
          Hardware: All
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: [email protected]
          Reporter: [email protected]

Description:
Today I was for the first time writing an equation-heavy document with writer.

During editing, suddenly trying to edit most existing equations gave a popup
"OLE Error". After closing the file, and reopening it, all but a few equations
are shown as just "Object 22", etc.

Inspecting the files raw XML contents, I've found that the objects are MISSING
from the document entirely.

The issue occurred shortly after I made several changes using the "graphical"
equaton editing mode, i.e. when double-clicking an equation to edit, and then
editing directly in the rendered representation. However, it wasn't the first
time I did so.

Symptoms seem similar to
https://bugs.documentfoundation.org/show_bug.cgi?id=125585&GoAheadAndLogIn=1,
but it looks like the cause is more severe, as the contents are missing and
thus not recoverable.


Version: 7.1.4.2 / LibreOffice Community
Build ID: 10(Build:2)
CPU threads: 12; OS: Linux 5.3; UI render: default; VCL: kf5
Locale: de-AT (en_US.UTF-8); UI: en-US
Calc: threaded

Steps to Reproduce:
Reproduction procedure not clear. I am attaching the affect file, maybe it will
contain some indication of what went wrong.

Actual Results:
-

Expected Results:
-


Reproducible: Couldn't Reproduce


User Profile Reset: Yes


OpenGL enabled: Yes

Additional Info:
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: Quadro P620/PCIe/SSE2
OpenGL core profile version string: 4.5.0 NVIDIA 470.74
OpenGL core profile shading language version string: 4.50 NVIDIA
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6.0 NVIDIA 470.74
OpenGL shading language version string: 4.60 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 NVIDIA 470.74
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

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