QQRCode generator matrix oddities

[osj1961]

Quasi-quadratic residue codes are supposed to have double-circulant generator matrices [A,B] where both blocks are pxp circulant matrices with 1's in the quadratic residue position in A and in the non-quadratic residue positions in B.
According to the (old) manual:

a linear [14,7,1..4]3..5 code defined by generator matrix over GF(2)
gap> G1:=GeneratorMat(C1);;
gap> Display(G1);
 . 1 1 . 1 . . . . . 1 . 1 1
 1 . 1 1 1 . . . . 1 1 1 . 1
 . . . 1 1 . 1 . 1 1 . . . 1
 . . 1 . 1 1 1 1 . 1 . . 1 1
 . . . . . . . 1 . . 1 1 1 .
 . . . . . . . . . 1 1 1 . 1
 . . . . . . . . 1 . . 1 1 1
gap> Display(C1!.DoublyCirculant);
 . 1 1 . 1 . . . . . 1 . 1 1
 1 1 . 1 . . . . . 1 . 1 1 .
 1 . 1 . . . 1 . 1 . 1 1 . .
 . 1 . . . 1 1 1 . 1 1 . . .
 1 . . . 1 1 . . 1 1 . . . 1
 . . . 1 1 . 1 1 1 . . . 1 .
 . . 1 1 . 1 . 1 . . . 1 . 1 

Where does the (clearly not doubly-circulant) generator matrix come from?
The current implementation returns the DC matrix but the rows are cycled in the opposite direction.