[Bifrost] The tower can be upgraded twice by quickly clicking the button
v3.6.15.40566
A bug was discovered while playing Bifrost:
If you quickly click the upgrade button while upgrading a tower, you can upgrade it twice, even without having the lore for the upgraded tower ('Great Tower' Horse Clan Lore).
This bug is guaranteed to work on a non-host player (host did not check). Myself and another player (non-hosts) were able to reproduce it without any issues.