1) Open PCManFM
2) Select View → Detailed List View
3) Double-click the column title separator between 'Name' and 'Description' → column 'Name' resizes to zero width
When trying to recover from this by:
4) Dragging the mentioned separator to the right (don't handle too much left, such dragging the Navigation-DetailView separator) crashes PCManFM silently
After selecting, for instance, a different directory in the navigation view before 4) no crash occurs at 4) but the 'Name' column is resized as expected.
OS: Fedora 3.9.5.fc19.x86_64