Collaboration: object sending is sometimes unidirectional

[erikos]

Steps to reproduce:

- share Etoys on machine A

- join on machine B

- send an object from A to B: works

- send an object from B to A: does not work

Etoys version: 115, 4.0.2340-2 Olpc build versions: 10.1.3 and 11.2.0

[erikos]

(this seem to be true only in some occasions, I am currently checking for exact steps to reproduce)

[erikos]

Steps to reproduce (there might be others, but this worked for me):

- start Etoys on A, share the Activity, make a new project

- join on machine B

- draw an image on machine B and send it to machine A by dragging it on the buddy at the left ---> on machine A the 'received' sound will occur but the object is not visible

- draw an image on machine A and send it to machine B by dragging it on the buddy at the left ---> on machine A the 'received' sound will occur and the object is transferred fine

(since the underlying structure is still unstable in the 11.2.0 builds I recommend a 10.1.3 build for testing this, the etoys version is the same).

[erikos]

Verified that this is also true on 10.1.3.