[492261] Merge ResourceAttChange in the right resource

Add test to make sure that diffs linked to a merged RAC are now created
in the right resource

Bug: 492261
Change-Id: I4de6c63d16add447241c891a22e46c224f819cd3
Signed-off-by: Mathieu Cartaud <mathieu.cartaud@obeo.fr>
9 files changed