Baum and Ornn Lore Conflict?

Hello all, I have just read the short story "The Lost Tales of Ornn" and i am a bit confused, after reading the story i remembered something from Braum's story and decided to reread it . In Braum's story it says ''What he didn't know was that the vault was a trap. The Ice Witch had cursed it, and as the troll boy entered, the magical door clanged shut behind him! It locked him inside! Try as he might, he couldn't escape." however in Ornn's lore it says that he created the door after being tricked by a troll and it was meant to protect the troll's treasure. So i have a few questions about this, was this a different door that just so happened to be made with a rams head and impenetrable or did the Ice Witch curse it at a later date? Also how did the troll boy open the door if the ancient troll who original tricked Ornn was never able to open it? If anyone can give me some answers or speculation i would appreciate it, also i am not good with keeping up on discussions so if this has already been addressed i would appreciate a link to the addressed post please and thank you. Riot is pretty good with keeping their lore in tact IMO, but they have retconned some lore and i am wondering are they planning on retconning Braum's with the release of Orn's lore? I would hate to think they simple forgot Braum's story and now there is a conflict but perhaps they are planning a more in depth story to explain how it went from the origin of the door and to the point where Braum acquires it.