Hello Dan,
I can confirm the issue, thank you for your report! We will fix it in a future version.
As a temporary workaround, add the following CSS rule:
.wx-name > span:first-child {
white-space: pre !important;
}
It preserves the whitespace at the end of the first span. Demo: https://snippet.svar.dev/react/Ze7UMAqOK
The feature itself allows you to see some characters at the end of the file name. This makes it easier to recognize file extensions in long names that would otherwise be truncated. Some other file managers also have this feature, such as Dolphin and Nautilus.
