Commit
e22287c2e597df62ade330363d03b9a61b7698b2
by Pierre-Charles David[372] Avoid NPE when editing session has been closed
If promptToSaveOnClose is triggered by async closeEditor calls triggered
after EditingSession::close (during closeOtherEditors preClose), the
restoreToSavePointListener has already been removed and set to null.
Bug: #372
Change-Id: I87db20f6b074171ed21914b8c2b9396db3062cc7
Signed-off-by: Maxime Porhel <maxime.porhel@obeo.fr>