Description:
It seems that Right-to-Left Paragraph Alignment makes the borders of new-created tables not fill all its borders, specifically the before most left and the before most right. For example, after I set the mentioned style for Default Paragraph Style, and create a new table with more than three columns; then the right border of the left column and the left border of the right column will not be affected by any applied border style for that table.

Steps to Reproduce:
1. Open a document or make a new one in LibreOffice Writer.
2. Open `Modify` UI of `Default Paragraph Style`.
3. Go to Tab `Alignment`.
4. In `Properties` section, set the `Text Direction` to `Right-to-Left`.
5. Create a new table with more than three columns.
6. Apply any visible border style to it.
&. The bug occurs.

Actual Results:
Two line borders of the table will not be affected by the style application. To be more specific, these are the right line borders of the left column and the left line borders of the right column.

Expected Results:
All line borders should be affected by the style application.


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Version: 7.3.6.2 (x64) / LibreOffice Community
Build ID: c28ca90fd6e1a19e189fc16c05f8f8924961e12e
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Vulkan; VCL: win
Locale: id-ID (id_ID); UI: en-US
Calc: CL

1. It only happens when the RTL style has been applied for `Default Paragraph Style`. If the same application is worked on other styles, no bug will occur.
2. If the work is reset to default, the created table still holds the bug. But new tables after that will behave normally as long as `Default Paragraph Style` is not modified as before again.
3. The bug only occurs if the created tables have more than three columns.