Merge pull request #20828 from Mugen87/dev40

Matrix3: Add missing return statement to setUvTransform().

src/math/Matrix3.js

@@ -239,6 +239,8 @@ class Matrix3 {
 			0, 0, 1
 		);
 
+		return this;
+
 	}
 
 	scale( sx, sy ) {