Turns out one of the “fixes” in 0.5.71 still had a small problem with it that could be damaging to some data when using the single document mode. When creating a new document while the parent document was selected (ie – creating a scene in a chapter via the file drawer right click menu) or by double clicking a scene in the outline view, the parent document (chapter) would have it’s title replaced by the title of the scene. It would also replace notes, synopsis, and potentially tags.
Update to 0.5.72 immediately, especially if you use single document mode.
Incidentally, I found this while writing in the car while Wendy drove us to a wedding on Saturday. Beautiful wedding – annoying bug that I couldn’t fix until this morning.