I couldn't either 
Hopefully I'll be able to find again the original file where this occured (it was while building this part http://www.ldraw.org/cgi-bin/ptdetail.cg.../24947.dat). But trying to reproduce this problem, I stumbled on another one: LDPE edger2 wrongly adds condlines in the middle of slightly warped quads (here 1.36°):
Hopefully I'll be able to find again the original file where this occured (it was while building this part http://www.ldraw.org/cgi-bin/ptdetail.cg.../24947.dat). But trying to reproduce this problem, I stumbled on another one: LDPE edger2 wrongly adds condlines in the middle of slightly warped quads (here 1.36°):
Code:
4 16 5.5434 24 -2.2962 9.2079 20.0834 -4.1575 10.1608 20.0834 0 6 24 0
4 16 10.1608 20.0834 0 9.2079 20.0834 4.1575 5.5434 24 2.2962 6 24 0