Pre-requisite:
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1. Install the Time Off module
2. Create a new company (e.g, Test Company)
3. Create New Timeoff Type: 
    * Ensure a default company is set (e.g, YourCompany)
4. Duplicate the created Time off type: 
    * Remove (Copy) from the name so both records share the same name
    * Clear the Company field on the duplicated record

Steps to reproduce:
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1. Go to Time Off type which has no Company
2. Allocation Smart button > New
3. Set allocation for some days (e. g, 10 Days) > Approve allocation
4. Now, click on Employee > Time Off smart button
5.  On the Dashboard, you can see allocated leaves
6. Click on any day to create a Time Off Request

Observation:
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The allocated Time Off Type is not available in the request wizard, even though allocation exists.

Issue:
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When natively computing allocation statistics for the UI, the `_compute_leaves` loops through a pre-fetched `data_days` structure and incorrectly extracts the calculation metrics by matching the `holiday_status.name` string via a list comprehension lookup index (`item[0]`).
https://github.com/odoo/odoo/blob/73d73c5c6606e0b34c754bfc4de035840951dd3b/addons/hr_holidays/models/hr_leave_type.py#L288-L294

If Time Off Type A and Time Off Type B share the name 'Generic Leave', the list comprehension evaluates sequentially and forcefully maps the dictionary of whichever version structurally sits first in the memory sequence directly onto both overlapping identifiers simultaneously!

Solution:
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Directly match records using their unique ID.
This ensures that each database record always retrieves its own correct data, preventing any mix-up or accidental sharing of values between records that may have the same name.

opw-6105759

Forward-Port-Of: odoo/odoo#264104
Forward-Port-Of: odoo/odoo#261680