[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