Outline alignment in recent updating is bit of confusing

[ZenMoto]

This will do it:

/* move the parent to the left */
.tree-item .tree-item-self .tree-item-icon {
    margin-left: -16px;
}

/* move the children to the left */
.tree-item-children {
	margin-left:0px;
}

RESULT:

(Just add that code to your CSS)