Collectible Card Game Headquarters

Describe the Bug:
There's a stray comma at the start of the prompt for mana when playing Transguild Promenade.

Which card did behave improperly ?
Transguild Promenade.

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
OtIv2, solo duel.

What exactly should be the correct behavior/interaction ?
"[Cancel] Tap "

Are any other cards possibly affected by this bug ?
I haven't been watching for it.

We have a saying in my country for a person that is very thorough,precise,perfectionist... "that he doesn't miss even a comma" I guess this is the literal case.

Well, it's an hardcoded bug, it happens every now and then, apparently when the engine didn't catch the card that's actually calling "charge_mana".

Fixed 0c03f30. The same technique has to be used whenever charge_mana() would be called during spell/ability/trigger resolution.