Fixed bug 2471

[Wilhelm Sanke]

The announced buildnumber 77 that contains the fix has been made 
available with version 2.5.1-2.

The affected Metacard Control Browser, as well as Richard's 
"Devolution", MisterX's "ControlsN20", and my "MCBrowser" and 
"RevBrowser´" tools thats used similar routines to display groups and 
nested groups, now again work as they did before August last year. Just 
tested the new version.

Many thanks to Mark Waddingham and others that appear persuaded to 
include this fix in the first update of the new engine because of the 
general nature of the bug (after first having voiced some reservations).

--Wilhelm Sanke