Manually entered time is not saved

Steps to reproduce

1. Create a new task
2. Click start date
3. Click in the time input box and type in the minutes (eg 9:23)
4. Pressing enter or clicking the tick does not save the minutes

Expected behavior

I would expect typing in an explicit time for that time to be saved against the task.
The up/down spinner only select 30 minutes or 00 minutes so cannot be used.
The popup when clicking the digits between the arrows only shows 5 minute intervals, so is also not useful if the task needs to be started at a non-five-minute increment.

Actual behaviour

Typing the time in and pressing enter or tick to save the task results in the minutes part being wiped out.

Tasks app version

0.17.1

CalDAV-clients used

No response

Browser

147.0.3

Client operating system

Debian linux

Server operating system

Debian linux

Web server

Apache

Database engine version

MariaDB

PHP engine version

PHP 8.2

Nextcloud version

32.0.3

Updated from an older installed version or fresh install

Updated from an older version

List of activated apps

Nextcloud configuration

Web server error log

Log file

Browser log

Additional info

No response

Start by reproducing the issue in the Tasks app with a manually entered non-five-minute time, then trace the frontend time-input and task-save handling. Done means that entering minutes such as 9:23 and confirming with Enter or the tick preserves the complete time on the task.