[Therion] extend hide + xvi

[Vasily Vl. Suhachev]

Hello!

"extend hide" not work for xvi files on my Therion 5.2.7

Example data:

202	203	7.4	0	-90	[0 0]	[0 0]	[0 0]	[0 0]
group
flags duplicate
202	202_left	1.2	318	0	[0 0]	[0 0]	[0 0]	[0 0]
extend hide 202_left
202	202_right	1.5	138	0	[0 0]	[0 0]	[0 0]	[0 0]
extend hide 202_right
202	202_up	3.5	0	90	[0 0]	[0 0]	[0 0]	[0 0]
endgroup


-- WBR, Vasily