Genbank parser doesn't handle feature attributes with colliding names.

[TimothyStiles]

Describe the bug

The genbank parser cannot handle repeating attribute keys like with /db_xref below:

Severity of the bug

This is blocking Ark's ability to cross reference other databases. (priority)

Steps to reproduce

You can debug this by debugging BenchmarkRead(b *testing.B){} in genbank_test.go within a couple of feature extraction loops you'll see that db_xref only keeps the last reference.

Expected behavior

We need to be able to track attributes with the same key name. List of tuples?

Screenshots

Client information

• OS: Mac OSX 0.15.7
• Golang version: 1.21
• poly version v0.27.1

[TimothyStiles]

adding @Koeng101 to the issue.

[github-actions]

This issue has had no activity in the past 2 months. Marking as stale.

[carreter]

Working on this now!

[carreter]

This should be an easy fix, but the entire genbank parser needs to be reworked, and it seems like it won't be trivial. I'll open a separate issue.