Offering with no break bug - unfunded study period is getting null when it is attached to an application

**Offering with no break bug - unfunded study period is getting null when it is attached to an application**

when we create an offering without a study break, `unfunded study period day` is `0` as expected

but once we attach it to an application(create an application with the offering), the field is `null`,

Tested in both local and dev, happening in both. DB is value is same in both case

,but for some reason UI/form is having some issue

Reproduce the flow described: create an offering with no study break, then create an application using that offering and inspect the unfunded study period day in the UI/form. Compare the offering value of 0 with the application value of null, and trace the form or application entry point responsible. Done means the attached application displays the expected value of 0.

Written by the indexing model from the issue text.