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369081d1c4
This problem made test64 to crash. Description of the bug: when removing entry from history when removed entry is not the last one it puts one element to free_entries list, but ignores free entries starting from last_free_element. Possible solutions: 1. First working: simply populate free_entries list with entries which are still free, starting from last_free_element. 2. Better (wastes less CPU): after free_entries list size goes to zero (which is the initial value) continue using last_free_element. 3. Even better (less memory): note that element from the list is *only* removed before adding another one. So replace free_entries array with one item. Also renamed last_free_element to last_free_entry: in any case most of the lines which mention it were altered.