By design, FreeMind folds/unfolds the node on click. FreeMind needs property in Behavior Preferences like
1. Fold/Unfold node
2. Select node
3. Edit node
Select on hover does not work well with large maps. (Other users have noted this problem.) We should be able to choose instead (not additionally) a different behavior: select on click. Fold/unfold should then require a double click.
Really, I think "select on click" should be the default behavior. Did anyone do a usability study on "select on hover" in a mind-map setting? It is too easy to accidentally select a node (e.g., bumping the mouse while typing).