Record parent attribute invalid

[svengato]

This error comes up during validation in TrifoliumMine. Similar to #163 which also asks about sorting?

[convertFile] ## Validating tripr collection MilvusB.gnm2.ann1.DFgp
[convertFile]  - tripr.MilvusB.gnm2.ann1.DFgp.gene_models_main.gff3.gz
[convertFile] ## INVALID: tripr.MilvusB.gnm2.ann1.DFgp.gene_models_main.gff3.gz record parent attribute is invalid; does the file need sorting?
[convertFile] ## INVALID: tripr.MilvusB.gnm2.Tp1     ensembl five_prime_UTR  6545    6812    0.0     .       ID=tripr.MilvusB.gnm2.ann1.mRNA2509.utr1;Parent=tripr.MilvusB.gnm2.ann1.mRNA2509;Name=tripr.mRNA2509.utr1
[convertFile] ## INVALID: {Parent=tripr.MilvusB.gnm2.ann1.mRNA2509, ID=tripr.MilvusB.gnm2.ann1.mRNA2509.utr1, Name=tripr.mRNA2509.utr1}