Not a Bug Selling Unleashed Unit Upgrade gives supplies/coins

[DeletedUser1777]

Game version: v1.45-(91f340835) (2017-12-01 10:23)
Game world: beta
Browser + version: FF 57.0.1 (64-Bit)
Flash Player version: 27.0.0.183
Operating System: Win 7
Screen resolution: irrelevant
Account name: evelyntest ( please to Flabbes)
Humans or Elves: Elve
Reproducibility: 5/5
(1/5 = happened once; 2/5 = happens randomly; 3/5 = happens sometimes; 4/5 = happens often, but not always; 5/5 = happens always)

Quest title: none

Current situation:
I have a "first generation" Unleashed Unit Upgrade in my city. When I try to sell it, I get an offer for coins / supplies. As no other eventbuilding is giving anything, I suspect it's a mistake.

Expected situation:
gain nothing, when selling eventbuildings

Reproduction Steps
1. have the expired building and sell it


Screenshots of the bug:

Spoiler

 

[Dony]

i think its the same as mage buff building we were talking about back then in https://beta.forum.elvenar.com/index.php?threads/eldrasils-ascending.9279/page-9#post-55576
level 1 doesnt give any culture thats why it gives atleast some coins and supplies back in my opinion

 

[Kersepitje]

Im letting this be checked by game design.
it indeed does feel weird to me too

 

[Marindor]

Thank you all for waiting. We have checked this with Game Design and it is indeed intended for this building to give some supplies and coins back. We're currently working on applying this to all expiring event buildings to give them more value