Do disney princess dolls use the same joint system as toy story characters?

Quick Answer
The provided evidence does not contain any information about the joint system used in Disney princess dolls, so we cannot confirm whether it matches that of Toy Story characters.
Explanation
The only verified information we have concerns the Toy Story franchise, specifically the character Buzz Lightyear and the fact that he is an action figure. There is no mention of Disney princess dolls or their construction details in the sources. Because joint systems in toy lines can vary widely depending on the manufacturer, intended age range, and design goals, we cannot assume that Disney princess dolls use the same joint system as Toy Story figures. A definitive answer would require additional data about the manufacturing specifications of Disney princess dolls.