Please describe the problem:
I have  directory structure and I'm using the file manager with sidepanel Tree, view list, hidden files Show.  In a child that has sibling and both sibling have children, selecting multiple files or folders fails and instead the shift-click opens one of the sibling

Steps to reproduce:
1. open places; home folder
2. click to select a folder, click to select some other folder
3. shift-click on another folder to select multiple
4. repeat 2 and 3 until the shift-click opens some other folder instead of selecting items


Actual results:
more or less often some sibling subdirectory will open so a delete files or other files action will act upon incorrect files/folders if the operator is not careful or falls into muscle-memory

Expected results:
multiple items are selected 

Does this happen every time?
yes

Other information:
unmounted everything (windows, gvfs) so that Tree shows only Home Folder and File System