[fixed]Exile a *color* card from hand alt casting cost

[drool66]

Describe the Bug:
Certain cards from Mercadian Masques templated "You may exile a *color* card from your hand rather than pay *Card Name's* mana cost." If both costs can be paid, the option menu displays only "Play Normally" and "Cancel." Selecting "Play Normally" actually progresses to paying the alt cost.

Which card did behave improperly?
Unmask / Vine Dryad / Pyrokinesis / Reverent Mantra / Snapback

Which update are you using? (date, name)Which type? (duel, gauntlet, sealed deck)
Manalink dev 778ccb5 version - duel

What exactly should be the correct behavior/interaction?
The menu for selecting which cost will be paid includes "Play Normally" and something like "Exile a *color* card from your hand" and "Cancel"

Are any other cards possibly affected by this bug?
I don't think so. I tested the cards I could find with alt casting costs and while some of them misbehave, none of them act exactly like this. The cards that I tested ok are:

Abolish, Allosaurus Rider, Bounty of the Hunt, Cave-In, Contagion, Dark Triumph, Daze, Delraich, Dream Halls, the Borderposts, Foil, Force of Will, Gush, Hand of Emrakul, Invigorate, Land Grant, Orim's Cure, Pulverize, Salvage Titan, Sivvi's Valor, Snag, Soul Spike, Spinning Darkness, Thwart

and for the others I will open bug reports.

[Aswan jaguar]

Confirmed for all.If you choose cancel then you get normal play so there is no cancel option in fact.

[Aswan jaguar]

These 3 had other bugs mostly with untargettable sign and cancel:
Hand of Emrakul fixed in commit e9c59c61.
Delraich fixed in commit 4dd4023d.
Salvage Titan fixed in commit 7bde7a8f.

EDIT: Unmask, Vine Dryad, Pyrokinesis, Reverent Mantra, Snapback, Bounty of the Hunt and Cave-In all have the original bug. Problem is with casting_al_pitchspell which doesn't load the 1st part of alternative cost prompt in dialog if they don't have a value set for life_to_pay. This also makes the other cards with a set value for life_to_pay which work correctly to have only the 2nd part of the prompt "and lose 1 life" in menu. I can't find how to fix it.

[Aswan jaguar]

Fixed in commit 2aad2dc0.