This fixes a bug in the
listFiles() implementation for trees. Formerly, a tree edition of a
DocumentFileCompat would return tree
DocumentFileCompat objects for everything in
listFiles(). Now, it properly checks each
Uri to see if it is a tree or a document and provides an appropriate
DocumentFileCompat for each.
If you encounter any problems, feel free to ask a question here, or on Stack Overflow, if the question has not already been asked.