Can't select 3DES encryption algorithm in IKE Proposals. Selection changed to DES.

[cloudcapps]

Deployment Type

Self-hosted

NetBox Version

v3.7.3

Python Version

3.10

Steps to Reproduce

1. Cilck into the IKE Proposals section under VPN > Security.
2. Click to add a new IKE Proposal or edit an existing proposal.
3. Select 3DES from the encryption algorithm dropdown.
4. Selection will instantly be changed to DES instead.

Expected Behavior

I should be able to select 3DES as an encryption algorithm.

Observed Behavior

My selection was changed to DES instead.

[jeremystretch]

This is a bug in the form field choices; the value for 3DES is show twice:

        (ENCRYPTION_3DES, '3DES'),
        (ENCRYPTION_3DES, 'DES'),

IPSec proposals are affected as well, as they use the same set of choices. Thanks for catching this!