[448739] Center edges after the reconnect.

* With the new SetReconnectingConnectionBendpointsCommand, the edge
centering is broken since this command is executed after the centering.
* Add two new tests that check the reconnection on rectilinear edges.

Bug: 448739
Change-Id: Ia45596b1e395700270c975d840f157dd9fac8e28
Signed-off-by: Florian Barbin <florian.barbin@obeo.fr>
[releng] Don't try to launch a build from sirius.topic.sh

Reduce the scope of the script to only create a transient 'topic' branch
from a set of Gerrit reviews.

Change-Id: Icea0fa0eb9ccf886057d8d312306a8a78eb8f49d
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>