Fix duplicate item detection issue #145
Merged
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Remove the 'is_this_dup' from qtest.c's delete duplicate implementation.
Previously, 'is_this_dup' was used to indicate if the current item in the old list was a duplicate of the previous item, while 'is_next_dup' indicated if the current item was a duplicate of the next item.
This led to comparisons always skipping when (is_next_dup || is_this_dup) was true, resulting in the item with duplicates not being compared with items in the new list.
The 'is_next_dup' is retained for accurate comparison.