Created attachment 132444 [details]
Table border edges test file (LibO 5.3.2.1)

In normal view and print preview, the table border edges are incorrectly displayed. They're shown as if 2 bars were put together but only to their centerlines and not to their outer edges.

Prints (on paper or in PDF files) are OK and don't show this issue.

It must be a regression in LibO because in OOo the edges look fine also in normal and print view.

STR:
- Open Writer and insert a table.
- Go to "Table properties..." (in context menu) > Borders.
- Activate "Set outer border and all inner lines" (or outer border only).
- Set a big width (e.g. 9 pt).

Actual result:
Table borders are incorrectly displayed in normal view and print preview.

Expected result:
Table borders should be displayed as in prints with full edges.

Tested with

Version: 5.3.1.2
Build ID: e80a0e0fd1875e1696614d24c32df0f95f03deb2
CPU Threads: 8; OS Version: Windows 6.2; UI Render: default; Layout Engine: new; Locale: de-DE (de_DE); Calc: CL

and

LibreOffice 3.3.0 
OOO330m19 (Build:6)
tag libreoffice-3.3.0.4