[Tracker] Double clicking on Size column header hides all info

[bitigchi]

Steps:

1. Open a Tracker window, that has file sizes visible
2. Double click on the column border of the Size attribute (right edge)

Expected:

1. Column width should shrink to fit the file size

Actual:

1. Column width collapses all the way, hiding the numbers as well

I am not sure if the list view is a shared component, therefore putting Tracker as component.

hrev56578+8