Comment 3 for bug 1921949

Description:
The save icon (in libreoffice-math only) will indicate there are changes to be saved. However, if you arrow anywhere, it changes the save icon to indicate there are no changes needing to be saved.

You can close the doc in this state and you *will not* be prompted to save/discard changes and all changes will be lost.

Steps to Reproduce:
1. open new math doc
2. add any equation -> see the save icon indicates there are changes that need to be saved.
3. arrow anywhere -> see the save icon go back to indicating there are no changes.

You can keep making changes to see the save icon indicate there are changes. Then arrow to make it go away. You can do this repeatedly.

Actual Results:
You see the save icon go from indicating that there are changes needed saving to indicating no changes. If the document is closed in this state, all changes are lost without a dialog giving the user an opportunity to save before quitting.

Expected Results:
Once there is a change to an empty document, the save icon should indicate changes until the document is saved.

Reproducible: Always

User Profile Reset: No

Additional Info:
This problem manifests itself in:
  - bionic vm with stock 6.0.7-0ubuntu0.18.04.10
  - focal vm with stock 6.4.6-0ubuntu0.20.04.1
  - hirsute vm with 7.1.2~rc2-0ubuntu0.21.04.1~lo4
  - a debian 10 vm, with stock 6.1.5-3+deb10u7

There is a corresponding launchpad bug: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1921949