How to prevent certain characters in the uuid generated/appended for file uploads when used as docker service?

i want to control the uuid generated , to not have some characters in it . im uploading to minio in dev using aws s3 plugin , but it appends a uuid which has certain special characters which is affecting the functionality of my application.

Are you using Uppy? Are you using our Transloadit services? It does not seem like it, so I will move it to the correct category.

it is related to this issue

This new behavior in v4 means users of standalone Companion that need or require to be able to dictate the S3 object key from the uppy frontend, cannot do so anymore.

i wasnt sure which category does it belong to . i just want exclude to certain characters in the appended uuid.