route /genomes/:version/genes hangs for some genomes with per_page attribute

[daviortega]

This works:
https://api.mistdb.caltech.edu/v1/genomes/GCF_002996345.1/genes?page=5

This does not work:
https://api.mistdb.caltech.edu/v1/genomes/GCF_002996345.1/genes?page=5&per_page=2

This works:
https://api.mistdb.com/v1/genomes/GCF_000302455.1/genes?page=5

This also works:
https://api.mistdb.com/v1/genomes/GCF_000302455.1/genes?page=5&per_page=3