Be that as it may, photos of the gathering, taken in Zimbabwe where Mengistu has lived for about three decades, have been broadly observed and shared via web-based networking media.
Mr. Hailemariam is an individual from the alliance that ousted Mengistu - and has been in Zimbabwe this week heading an African Union race spectator mission.
He confined his notable gathering as a compromise of sorts, as a screen capture of his erased post appears.
While the reaction to the photograph has been generally basic, it isn't to say that popular feeling on Mengistu is consistent, says BBC's Amharic's Kalkidan Yibeltal from Ethiopia's capital, Addis Ababa.
Our journalist says preceding Mr. Abiy's changes some resistance dissenters utilized Mengistu's photograph - for the most part via web-based networking media - to express their resentment at the legislature.
A lot of that outrage has scattered importance individuals are additionally not reluctant to demonstrate his picture at open social occasions now.