QTextDocument: stylesheet border-color for td applied only to first td

With a simple stylesheet of:

td {border-color: #FF0000;border-style: solid;border-width: 2px;}

the border-color #FF0000 seems only to be applied to the first td in a html document consisting of a table, few rows & table cells.

Steps to reproduce the problem:

1. Run the attached project

Small addition: it's apparently not only td that's affected, TH has the same problem. Also this thing seems to be fixed by marking color for each segment of the border separately:

border-top-color: red;
border-bottom-color: red;
border-left-color: red;
border-right-color: red;