#112 twin stip means "continued" in subsequent twins

[Thomas Maeder]

[reported by Bernd Schwarzkopf]

Popeye forgets the previous stipulation if a twin is formed by indicating a different stipulation. In subsequent twins, the modified stipulation is applied:

anfang
steine weiss Ke1 Bg7 schwarz Kh1
forderung ser-#2
zwilling forderung ser-=2
zwilling Spiegelung a1<-->h1
ende

Twin c) should be solved as ser-#2, but is in fact solved as ser-=2:

a)

b) ser-=2

1.g7-g8=D 2.Dg8-g3 =

c) Spiegelung a1<-->h1

1.b7-b8=D 2.Db8-b3 =

[Thomas Maeder]

Fixed in 4.69