Arcticap's right, the Cabela's Hawken is made by Investarms, and that lock does have that one interesting design 'feature'; it's not indicative of a broken sear.
And by the way, half cock is not a 'safe' position.
This subject was recently debated on another muzzleloading forum; essentially, a member asked the correspondents how they handled the Lyman GPR (it has the same lock with the same 'feature') when carrying in the field. About 1/3 said they carried uncapped and only capped when in a blind or hunting from cover. Another 1/3 said they carried hot (capped and either full or half cock) pointing the muzzle in a safe direction and decapping or using a hammer stall when climbing into a blind, over a fence or a stream. The final 1/3 said they carried capped with a hammer stall installed.