Comment 9 for bug 188849

1. can you give me a general idea about when a freeze will happen?
2. ok on 2geom
3. concerning pvt_concat_colors_and_flush:

iirc, the color business was only necessary to show one color for those points that had already been interpolated, and another for that part of the line which was yet to be interpolated.

since the patch defers interpolation until the mouse is un-clicked, this is no longer necessary: all points will be interpolated at the same time. the reason i duplicated it was because it shouldn't do anything, but (again iirc) i was a bit unsure how best to extricate the old code paths (and memory allocations).

if i need help going over the code who would be familiar with it?