[Bug]: "Set Reminder" is shown for pending shares but does not work

[kesselb]

Bug description

By default, shares are added to a user's home without requiring confirmation. The configuration flag 'sharing.enable_share_accept' changes this behavior, requiring users to accept shares first. This is managed under Shares → Pending Shares.

In Nextcloud 29, the option to set a reminder is available for pending shares, but setting a reminder does not actually work.

Steps to reproduce

1. Set up instanceA and instanceB.
2. In instanceB, set 'sharing.enable_share_accept' => true in the configuration (this is crucial to reproduce the issue).
3. Alice (instanceA) shares a folder with Bob (instanceB).
4. Bob (instanceB) tries to set a reminder for the pending share.
5. 💥

Screencast.From.2025-03-04.14-30-53.webm

Expected behavior

Don't show set reminder for pending shares.