Who can explain to me: Why is the English logo of "Nissan Bluebird" stuck on the car butt of "Nissan Sylphy"?

Bluebird is no longer on the list of Nissan in Japan. In the mid-1990s, Nissan stopped the production of Bluebird in Japan. However, in memory of Bluebird, Nissan named the next generation model of Nissan Sunshine B 15 series (the one imported from China in the early days) as Bluebird Sylphy with code name G 10 series, as the offspring of Bluebird and Sunshine. However, in order to deal with the export problem, Nissan renamed the export version of this Bluebird Sylphy as SUNNY, as a replacement product of the previous generation SUNNY, and changed the export version code to N 16. Dongfeng Nissan's earliest Nissan Sunshine is this Nissan Bluebird Sylphy (g 10)/ Sunshine (N 16). Later, Nissan updated the Bluebird Sylphy, and the new G 1 1 series appeared in 2005. I didn't expect Dongfeng Nissan to introduce this brand-new Bluebird Sylphy G 1 1 to China soon. In order to distinguish it from the existing bluebird, Dongfeng Nissan took the name of "Xuanyi" and gave it the Chinese name Xuanyi. However, after production, the car is almost the same as the original Bluebird Sylphy. Even the nameplate of "Bluebird Sylphy" at the rear of the car is exactly the same, which makes many people think that Sylphy is a descendant of Bluebird, but it is not. To be exact, Xuanyi is a hybrid offspring of bluebird and sunshine. Although Sunshine and Bluebird have been discontinued in Japan for a long time, their North American brothers ALTIMA (American Bluebird) and SENTRA (American Sunshine) continue to produce.