"enter at least two characters" in groupMove always

If you want to move a group, open the search form by clicking on "search for a folder where you are allowed to create new subfolders"  and enter no matter what, you will always get the error message "enter at least two characters".
 
I have already found the solution and would like to provide it here: In grouper-ui/webapp/WEB-INF/grouperUi2/group/groupMove.jsp, line 21, input name="groupSearch" is to be changed to input name="stemSearch".

We still use Version 2.4 but I've taken a look at the Grouper project at Github and it seems to me that the bug still occurs in 2.6 as well.