st2kv : Non-hexadecimal digit found

[Aliskaa]

STACKSTORM VERSION

Paste the output of st2 --version: v3.9dev (Ubuntu 20.04.6 LTS GNU/Linux x86_64)

OS, environment, install method

Docker

Steps to reproduce the problem

In v3.9dev, I tried to store a key with an encrypted value. The encrypted value contains special characters (., -, _)
When I use st2kv in my config file, Stackstorm asks me: 'Non-hexadecimal digit found'. But it's OK with version v3.8.

commands :
st2 key set my_token 'my.fake-super_password' --encrypt

The config file:

---
connections:
    my_token: "{{st2kv.system.my_token | decrypt_kv}}"
    url: "my_api.com"

Thanks!