Question on marking duplicate bugs

[Punpun1643]

Hi prof, I am not sure if I understand this screenshot correctly. Based on my understanding, if there are bugs 1, 2, 3 which are duplicates and I treat 1 as the original, I should point 2 to 1 and 3 to 1 and mark both 2 and 3 as duplicates.

However, I can't seem to do that on CATcher. When I tried assigning a duplicate to the original more than once, it will say that the original issue is "(A duplicated issue)"

[Punpun1643]

Edit: I realise that I understood the "duplicates" column in the CATcher table wrongly, sorry about that! All is good now 😄