I just played the whole incident in Candlekeep by not talking to "Koveras" when first met: the original game accounts for the player being in the 6th floor and talking to Tethtoril (who again tells about Grion's items) and Ulraunt (which just tells the PC to leave him alone). The warden on the floor then just tells that Koveras wants to talk to him. Then, after talking to Koveras and the IT leaders, the arrest is outside (maybe also on the 6th floor but I didn't go there again).
So, as far as I understood (I didn't play the ub component yet), the behavior with this component is more or less the original game behavior, only expanded to also happen after the player talked to Koveras already.
I also think this component is great addition. In my first playthrough, I didn't collect Gorions items but was arrested on my first scout through the library, so my PC got the info by Tamoko and I felt quite stumped when I heard later that there were a letter I never encountered while playing as I thought it important to get this note from Gorion (because I never understood why he didn't have the urge to communicate the heritage with the PC in some way, so this letter closed the gap). I also think that bg1npc made a nice addition by letting Tethtoril give the letter to the PC when freeing them in case the letter was not collected.
- One correction: with the component installed, the guard in the sixth floor won't tell you about Koveras (no matter if you talked with him or not). He will just say:
"Sorry, young one, but ye're not to be allowed in here. Now go run along and do somethun' useful". But he won't act on what he said.
Food for thought: maybe the guard should make a reference to Koveras, as in the original game? Salk's decision.
- Note for Salk: the bug with the watcher on the sixth floor continously poking you happens only if you have already talked to Koveras. If you didn't, he won't even come to you.
- Another note: Jastey, you mention the fact that you missed the letter in one of your playthroughs; I played chapter 6 and I realized that you'll always miss the letter if you kill Rieltar and the others, no matter if you installed the dialogue restorations or not.
@Salk, would you give a thought about your mod touching the "evil" path?
- Also, the component removes the dialogue option to resist the watchers and have a scripted death.