Outdenting multiple list items on the first level, puts the list contents on the same line after unindent

In wiki editor, type:

* item 1
* item 2
* item 3

switch to wysiwyg editor, select all the items in the list, and hit outdent. The result will be:

item 1item 2item 3

when it should be:

item 1

item 2

item 3