you haven't really provided enough information fo us to be able to help you - the tracker issue you linked to has been fixed - it lists as being fixed in Moodle 1.9.3 and higher.
if you're using an older version of Moodle, to get a "permanent solution" you should upgrade.
also look here:
http://docs.moodle.org/en/SCORM_FAQ#My_SCORM_doesn.27t_transfer_grades_the_way_I_want_it_to
Gradebook
SCORM grade not changing
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