If the time picker component is emitting a Date object already, then there is redundant call of `new Date(new Date())` and
therefore introduces subtle bugs, for example on chrome users could not enter expiration date with keyboard.
- Use @update:model-value instead of @change/@input for more reliable date updates
- Ensure null and invalid dates are handled correctly in onExpirationChange
- Validate date input before updating defaultExpirationDateEnabled
Resolves : https://github.com/nextcloud/server/issues/51875
Signed-off-by: nfebe <fenn25.fn@gmail.com>
Signed-off-by: nextcloud-command <nextcloud-command@users.noreply.github.com>
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