Ick... gotta find a first bid as South...
I picked 3♣ despite the fact that the description explicitly includes "2-H"; I hoped to be able to do something about that later.
I wish I had written down the description of what 2♦ would have meant; I just remember that I didn't think it fit my hand.
Bottom line: apparently, GIB thinks that introducing a new suit here specifically denies having 3-card support. Hopefully this can be changed.

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