The journalist of The Verge portal, Tom Warren, uploaded a video showing what was happening. When a user deleted an answer and then wanted to place another, the one that had been eliminated would appear again, giving the possibility of editing it.
At first, it was speculated that Twitter was testing the feature. However, from the social network they explained that it was a technical error, which was fixed within a few hours.
Several users claim that the social network enables the possibility of editing old tweets. However, it seems that option will never come.
In fact, Twitter co-founder Jack Dorsey has claimed more than once that this feature will probably never be incorporated.