[14.0] date_range : date range generator ask for end date even if it's already filled

[abenzbiria]

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Module

date_range

Describe the bug

Generate date range wizard raise a Validation Error asking to fill the end date even if it's already done.

To Reproduce

Affected versions: 14

Steps to reproduce the behavior:

1. I fill all required data to generate monthly periods

2. I get a validation error message :

Expected behavior The wizad have to generate my periods like bellow :

Additional context When I set 12 at the entries field , the wizard generate well the periods .