@attila-v As I said before, I think this can be a problem even when `keep_edit_history_on_reload` is enabled. Normal reload works per-document, so I know exactly which files have been reloaded, so I can go and undo there. But with reload-all, how do I know where to undo?
Perhaps a minimal fix would be to note such files (reloaded despite unsaved changes) in the status bar, so I could see them all in the “Status” pane.