Reload VCF - sample order switched

[davmlaw]

In current SA Path code - we reloaded a VCF in place where an extra sample had been added

This caused a different packed field index for sample sample name:

    for i, sample_name in enumerate(sample_names):
        sample = vcf.samples_by_vcf_name[sample_name]
        logging.info("Creating cohort sample for: %s", sample)
        CohortSample.objects.get_or_create(cohort=cohort,
                                           sample=sample,
                                           defaults={
                                                "cohort_genotype_packed_field_index": i,
                                                "sort_order": i,
                                           })

Then died with:

 Error: duplicate key value violates unique constraint "snpdb_cohortsample_cohort_id_cohort_genotyp_b2c4ac43_uniq" DETAIL: Key (cohort_id, cohort_genotype_packed_field_index)=(6057, 0) already exists. ."

Maybe a hack would be to set the index super high with:

qs.update(cohort_genotype_packed_field_index=F"(cohort_genotype_packed_field_index")+1000)