I am questing on Taris as a Smuggler at the moment and have noticed this on several occasions. Wasn't sure if this was a Taris thing, a Smuggler thing or just being the second playthrough for me.
The quest dialog says one thing and then repeats it slightly reworded later on in the conversation. One instance is the "brat brigade" NPC near the spaceport. He tells me "droids took our farm, go get it back" and I respond with a "so what?" comment. He follows up with the same thing in a slightly different way, like "we need you to go out to our farm, there's droids everywhere" as if the first round had never happened.
This seems to happen most often when I attempt to refuse a quest mid-stream, not to be confused with the final "refuse quest" option at the end of the conversation. I did not notice this on my first play through as a Consular, who was more than eager to help just about everyone. One of the main reasons I chose a Smuggler was for the dialog, so it's pretty jarring.
Anyone else getting the same thing? Am I doomed to hearing NPCs repeat themselves for the next 32 levels?