In snapshot views, file and directories are unloaded differently.
The action taken to unload a file depends on the current state of the file:
Directories are unloaded recursively. To unload a directory element, the files in the directory are unloaded. If any view-private objects, hijacked files, or checked-out files are in the directory, or if the directory is currently in use (for example, if your current working directory is in or below the directory) .unloaded is appended to the name of the directory. For example, if the directory src contains view-private files, the directory is renamed to src.unloaded.