Segfault when accessing gripped entity

[mniess]

I get a Segemantation fault, when accessing the EmbodiedEntity the gripper holds via the .GetGrippedEntity() function.
I forked the argos3-examples repository and implemented a loopfunction, that produces the segault with the gripper example.

Steps to reproduce:

1. clone https://github.com/randusr/argos3-examples
2. build & run gripper example
3. press start in gui
4. as soon as the robot grips the cylinder, the Segfault occurs

[ilpincy]

Thanks for the bugreport! I'll have a look at it in the weekend.

[ilpincy]

fix.txt
It's a bug in your code. Here the fix. I suggest you to learn how references work in C++, because the bug you had was due to that.

[mniess]

Thanks for looking through the code and the fix.
Sorry for bothering you with trivialities!