Clone's are still commanders in the graveyard

[ChibiTomo]

Describe the bug
Maybe it is over generalized, but on a test game, I succeed to have my 'Stunt Double' arrive as my commander 'Uugguu' inside the graveyard.

To Reproduce
Steps to reproduce the behavior:

1. During game with 'Uugguu' as the commander, have it on the battlefield.
2. Have 'Stunt Double' entering as a copy of 'Uugguu'
3. Sacrifice 'Stunt Double'
4. Foge ask if you want it back in the command zone (???): say no.
5. Now you have 'Uugguu' in the graveyard AND on the battlefield, with 2 more as non legendary token, and no more 'Stunt Double'

Expected behavior
We should only have 3 'Uugguu' on the battlefield (2 tokens and the commander) and 'Stunt Double' in the graveyard.

Screenshots

Desktop:

• OS: Windows
• Browser Brave v1.93.136
• Version 2.0.14

Additional context
N/A

[TheLastNarwhal]

@ChibiTomo

You sacrificed the wrong creature to the legend rule. You seem to have sacrificed your actual commander instead of the Stunt Double copy. You can see this in the image since none of the Uugguu creatures have the commander symbol on the card. Also, you can tell by the fact that Forge asked you if you wanted to send Uugguu to the command zone instead of the graveyard. Copies of your commander don't count as your actual commander, and so they don't deal commander damage, or have the commander replacement effect.

[ChibiTomo]

@TheLastNarwhal
I was quite sure, but maybe I am wrong. I will test it again next week and close the issue if I was indeed wrong.
Thanks.