Only a few (one?) signature of a function is displayed

For example, when autocomplete on $doc.getObject, only $doc.getObject(String, int) is proposed even if there is a lot of other possibilities for getObject. Here is the list of available getObject on my wiki (get them with Scripting Documentation Application):

• getObject(String classname)
• getObject(String classname, boolean create)
• getObject(String classname, int nb)
• getObject(String classname, String key, String value)
• getObject(String classname, String key, String value, boolean failover)