Check that pointers differ to determine if shallow copy is needed -> fixes a bug when inputing different image to SmartVolumeMapper
Check that pointers differ to determine if shallow copy is needed -> fixes a bug when inputing different image to SmartVolumeMapper

aabadie/medInria-public,rdebroiz/medInria-public,NicolasSchnitzler/medInria-public,NicolasSchnitzler/medInria-public,rdebroiz/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public,aabadie/medInria-public