Potential memory leak when using Trigger

[gscaparrotti]

A Trigger makes a reaction execute only once but, instead of being removed from the simulation after the execution, it remains scheduled at infinite time, thus never releasing its memory.

[DanySK]

I think @cric96 fixed this, am I correct? If so, please close it

[cric96]

Uhm I don't think so, I just did it programmatically. But if you wanna I can try to fix this