Description:
In the otherwise excellent Format->Cells->Borders dialogue, when I click on a border for a cell, that border thickness is automatically changed to whatever value is in the Thickness dialogue box, rather than displaying the current thickness of the border.

This is a problem because I might not want this. Unfortunately, it is impossible to distinguish the the Hairline, Very Thin, and Thin thicknesses from each other when looking at the dialogue. They are displayed as the same thickness in the dialogue, the spreadsheet, and print preview. I have to actually print the page to see if my thinner borders are the ones I want.

The solution would be for the Thickness dialogue box to display the current thickness of a border when that border is clicked, rather than  automatically changing that border to whatever value is in the dialogue box.

Steps to Reproduce:
1. assign a Very Thin border to a cell
2. bring up the Edit->Cell->Borders dialogue for that cell
3. look at the border just assigned and see that it cannot be distinguished from Hairline or Thin, so you don't know which border you have chosen if you don't remember
4. look at the Thickness option: it says Thin by default
5. click on the border just assigned
6. observe that the border changes to Thin, rather than displaying the thickness of the border as it was when the dialogue was opened

Actual Results:
When "5. click on the border just assigned" above is done, the border is changed to Thin, despite the fact that I don't want that. I just want to know which border thickness I actually chose.

Expected Results:
When "5. click on the border just assigned" above is done, the Thickness option would display the thickness of that border as it is right now.


Reproducible: Always


User Profile Reset: No

Additional Info:
I am running:
 Kernel: 6.8.0-49-generic arch: x86_64 bits: 64 compiler: gcc v: 13.2.0 clocksource: tsc
  Desktop: Cinnamon v: 6.2.9 tk: GTK v: 3.24.41 wm: Muffin v: 6.2.0 vt: 7 dm: LightDM v: 1.30.0
    Distro: Linux Mint 22 Wilma base: Ubuntu 24.04 noble


The info from Help - About LibreOffice is below:

Version: 24.2.6.2 (X86_64) / LibreOffice Community
Build ID: 420(Build:2)
CPU threads: 4; OS: Linux 6.8; UI render: default; VCL: gtk3
Locale: en-CA (en_CA.UTF-8); UI: en-US
Ubuntu package version: 4:24.2.6-0ubuntu0.24.04.1
Calc: threaded