CheckParameterUtil.ensureParameterNotNull(my, "my");
CheckParameterUtil.ensureParameterNotNull(their, "their");
if (! isFrozen())
throw new IllegalArgumentException(tr("Merged nodes not frozen yet. Cannot build resolution command"));
List<RelationMember> entries = getMergedEntries();
return new RelationMemberConflictResolverCommand(my, their, entries);
}