Hi Ilias,
Thank you for contacting us.
We agree with you; let me explain.
The user "Jan van Bekkum" initially added the road with the tag oneway=no, which is illogical for a roundabout. I mistakenly modified it to oneway=yes and then removed it.
However, we do not add "oneway=yes" to roundabouts ourselves since it's considered implied and redundant, but if the tag was already present before our edits, we generally do not remove it.
Best regards,
Aya Samir