Sirius 3.1.6
[499449] Fix migration participant

* If there are several connectors (standard edges and note attachments),
there is a possible
IndexOutOfBoundsException or ConcurrentModificationException.
* "Complexify" the data of test to reveal the problem.

Bug: 499449
Cherry-picked-from: 499414
Change-Id: Ic8e230d95e483d20dfd284ed064c583321794e91
Signed-off-by: Laurent Redor <laurent.redor@obeo.fr>
3 files changed