Collectible Card Game Headquarters

Describe the Bug:
Serra's Blessing ability effects even when on stack.

Which card did behave improperly?
Serra's Blessing

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink 2016/08/27: Eldritch Moon v2, duel

What exactly should be the correct behavior/interaction?
Serra's Blessing

Are any other cards possibly affected by this bug?
-

Fixed in commit cfc3198.

Now gives vigilance to creatures while they're on the stack and the enchantment is on the battlefield. (The original bug was vice-versa.)

I don't think this has any practical effects - Manalink doesn't show ability icons on cards until they're on the battlefield, and as far as I know no current card cares about what abilities cards on the stack have other than "This spell can't be countered" - but I can certainly see WOTC printing something that does care, similar to how Essence Backlash, Sarkhan's Unsealing, and Spellbreaker Behemoth care about creature spells' power.

Korath wrote: Now gives vigilance to creatures while they're on the stack and the enchantment is on the battlefield.
Manalink doesn't show ability icons on cards until they're on the battlefield

This the only way I can check this so since I can't and it's safe for now this gets closed.