this report has been filed here:

https://bugs.edge.launchpad.net/ubuntu/+source/nautilus/+bug/299121

"1. click on a file
2. move the mouse to a different file -- lift it off the surface so that it cannot move
3. press and hold shift

--> the little triangular expander on the first subdirectory turns black -- I do not know what it should do

4a. without moving the mouse, click the mouse button

--> the first subdirectory expands -- it should not happen: Nautilus should select the range of files.

Repeat steps 1--3, then

4b. move the mouse slightly

--> the little tirangular expander turns white

5. click on a file while shift has been held down the whole time

--> the range is selected."

Thanks,