Version: (using Devel) OS: Linux - Add one bookmark to the empty bookmarks-sidebar. - Right-click the "Bookmarks" in the sidebar and add a folder - As you can see the folder is added as a sub-item of the bookmark created before and the bookmark is added as sub-item again too.
i can confirm that on svn trunk r815560 (~4.1-beta)
can't reproduce on svn trunk r829176 anymore (~4.1-beta2)