Funny bug with the alliance side onyxia attunement quest

[Pendrokar 0]

I was doing the "An Audience with the King" and was turning it in to Lady Katrana Prestor. She wasn't there, because

Spoiler

someone had completed the quest "The Great Masquerade."

When she reappeared, she didn't let me turn in the quest right away. Right when she finally let me hand in the quest, I noticed

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Reginald Windsor walking up to her, presumably to do the quest again. I knew that she'd leave SW keep after Windsor exposed her,

so I hurried up and turned in the quest. What ended up happening afterward with the dialogue was quite funny. Most of the lines of dialogue between

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Lady Katrana Prestor and Reginald Windsor

were swapped over, resulting in both of them referring to themselves in the third person, as well as some other weird things happening. Maybe i didn't have anything to do with the bug, but i'm including what i did just for the sake of the debuggers.