kickstart.profile.setKickstartTree API was fixed in Sat 5.7 to update appropriate cobbler fields ... see Bug 1086354.
ktordeur, do you want to close this BZ as duplicate of Bug 1086354 or do you prefer to treat this one as Sat 5.6 BZ?
If we could keep this one open to backport the fix to Sat 5.6?
Moving to MODIFIED as the fix is available in upstream (see Bug 1086354).
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.