Hi Matt,
I understand that accepting the second quest from the dozens locks you out from quests from the CK faction. The general sentiment in the linked threads is that this is not very clear, and being locked out is kinda harsh. If you notice the quoted comment from developer Oscuro, he says that this will be retroactively fixed in an upcoming patch. This indicated fix did not arrive in 1.03 nor does it seem it will arrive in 1.04, what I am wondering is, if it might be possible to get a status update on the fix. Is it coming at all and if so when? As other people have mentioned it seems kinda extreme to be locked just from accepting the quest nor is it very clear that this will happen. As you cannot abandon quests it becomes very easy to get locked into an undesirable path. From a roleplaying perspective it is not uncommon to be able to accept a quest from what the player would consider an antagonistic faction with the intention of sabotage.