It seems that the principle is the same. Data is written to the tablet, and then read from there. It is unlikely that there is an update of this data when changing the nickname.

Display of different nicknames of the same user in the section

Error description:
If a person once changed his nickname, then you can see such a bug in the section using his example. Displays different nicknames for those. Apparently, the nickname that was at the time the topic was created is used.
In the screenshot, the same person with three nicknames.

Link: Android - First Aid

Browser: Chrome 71
Skin: Usual