Truncation of names in ExoIconView

Commit aa3971c4 seems to introduce a bug in ExoIconView which causes item names to be truncated when displayed in icon view in thunar in a way that seems incorrect to me. I cannot work out how to reproduce this, but as far as I can see it only affects directories and then only very rarely. However, I am basing this on just a few examples only so I could be wrong. Also, this bug seems to only appear when zoomed out more than the default view setting.

EDIT: So the following steps reliably reproduce this bug for me. Open Thunar and set the view to icon mode. Zoom out one level from normal size. Create a new empty directory, and in that directory create a sub-directory with the name "a - bbbbb bbbbbb". The new directory's name will be displayed as "a - [linebreak] bbbbb". Similar names often also produce this bug, as long as they are of the form "X - Y Z" where X Y and Z are strings of letters and Y and Z have different lengths.

For example, I have a directory that looks like this when viewed at normal zoom in thunar using icon view

But when I zoom out one step, it looks like this

If I rename the first directory from "A - Linear Algebra" to eg "A - Linear Algebra aaa", then the bad truncation disappears for all of the items in the directory, and I see this After this renaming, the bad truncation does not reappear if I reload the view, navigate away and back again, or even close and reopen thunar.

The bad truncation appears consistently whenever I view this directory or a copy of it in icon view in thunar when zoomed out more than one level relative to the default zoom, and does not disappear if I reload the view. I have seen it in a few other cases as well, but I cannot see a pattern.

I have had a look at the commit, but I cannot easily see the problem. @andreldm, do you have any thoughts on this? The above example was done with current thunar master and exo master.