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[Chareyre <803774@xxxxxxxxxxxxxxxxxx>]

Running one additional step without erasing may avoid the problem, but it
still needs a fix.

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https://bugs.launchpad.net/bugs/803774

Title:
  Saving, loading simulation with erased bodies crash.

Status in Yet Another Dynamic Engine:
  Fix Released

Bug description:
  Here is the bug :

  - launch yade (for example without any script)
  - add a sphere : O.bodies.append(utils.sphere((0.2,0.2,0.2),0.006))
  - delete it : O.bodies.erase(0)
  - save yade's universe : O.save("./test")
  - quit yade
  - launch yade
  - load the file : O.load("./test")
  ->segmentation fault

  I think it's because when you erase something the size of O.bodies (etc...) doesn't change and now contains an empty value. (the c++ array may not be dynamic ?)
  So when the O.load() function is called, yade try to load a non-existant body ?

  Maybe this can be fixed by changing the load() method ?

  I joined the debug output.

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