[Gchemutils-main] extremely annoying display bug

[GUELLIL Noureddine]

Hello,

I have encountered a big problem during the upgrade of my Gchempaint to 
the 0.14.6-1 on Ubuntu 14.04.
When I try toclick on a bond in order to make a double or a triple bond, 
the bond simply disappears, and if I try to continue my work, gchempaint 
crashes and the savestate before crashing is not suitable

I'd like to fix that problem because Gchempaint is really the only 
software that is able to make me realize some reactions mechanisms, and 
that provides me an excellent output quality.

thank you for your attention, I hope I will get soon a response from you 
(by the way I'm french)

Have a nice day.