Setting `cursor` color to `default default reverse` only reverses part of the line

[ilyagr]

Here's the relevant portion of my .gitconfig:

[tig "color"]
cursor = default default reverse

It looks like this in tig blame:

I would like the whole cursor line to be reversed.

As is, the change of the cursor width is distracting when moving the cursor.

Setting cursor = black white works correctly. Of course, it wouldn't look good if I ever need to use a terminal with a light theme.