Default share expiration cannot be removed when creating a share

[juliushaertl]

Steps to reproduce

1. Ensure "Set default expiration date for shares" is checked but expiration dates are not enforced
2. Create a new share to a user through the web UI
3. Remove the share expiration checkbox
4. Save the share
5. Edit the share again

Current behaviour

The expiration date is still set

Expected behaviour

The expiration date is not set as the user removed it

Additional context

It seems the request to create the share doesn't have a expiration date in the request payload but the response is returning it, so either the backend needs some adjustment or the frontend code needs to ensure that a null/empty value is sent along

Affected versions

master to stable27

[Fenn-CS]

Fixed in #44485

[Fenn-CS]

#44485 is now merged.