Individual.get_patch: Update links from properties to relationships #452
test for #452
get_patch/relationship : don't clear but update
test for test_patch_with_composite_relations rewrited
test for test_patch_with_composite_relations updated
Individial.get_patch updated
orphelins added to commands
individual.get_patch fixed
orphelins -> orphans
Merge branch 'feature/fix-patch-relations' into develop