Repeated keys in different versions

Hello good,

I am about to upload a second version of a questionnaire, and I would like to know if there is a possibility that version 2 generates interview keys that are repeated with version 1. Or if there is a possibility that different questionnaires generate the same interview keys.

The doubt is because I am going to put together tables from a questionnaire carried out in 2022 and one that is being carried out now in 2024 and it will generate a problem for me that the keys are repeated.

What problem specifically?