This easter egg can be seen in all versions of the movie.
After the “Be A Man” song, we see Shan Yu cut the top off of a tree and stand there until his hawk delivers a little girls doll to him. He then jumps down and proceeds to pass the doll around his group as they analyze it’s origin.
Looking at the doll with it’s long black hair, sad facial expression and long, pink dress Disney fans may notice this doll is actually meant to resemble Lilo from Disney’s Lilo and Stitch.
Just as Lilo and Stitch had numerous Mulan references, this is no coincidence with Lilo and Stitch’s directors, Chris Sanders and Dean DeBlois both working on the production of both movies.
This can also be further reinforced by this interview with AnimatedViews where the directors talk about how they came up with the concept and artwork for Lilo and Stitch’s characters in the year 1985, 13 years before the release of Mulan (1998) and 17 years before the release of Lilo and Stitch (2002).