Bug: 6.05 - live reverb, GUI redraw failure on copy

[Angstrom]

hi,
a minor bug.

the live reverb GUI the 'diffusion' filter graph will not update correctly on copy.

steps to reproduce:

1. put a Live reverb device in a track
2. use the diffusion filter gui to lower the 'High' frequency and gain
3. drag to copy the reverb
4. the new copy has incorrect graph line information in the GUI, the points are correct.

ultra-minor ... but I thought I'd mention it.