Editable bug?

[Austin]

If my data is not editable should the initial value change if I update another field that would change the initial value? So I have a form that auto fills the initial value with the old values to update a row. So if mondayO and mondayC are 1am and 11pm those would fill in. If I change a TimeOfWeek field, the mondayO and mondayC are made not editable. When I click my 24_Hour column to true it should change the initial value to 00:00 and 23:59 for all the fields. I don’t want it to change the non editable fields. Is this a bug or do I need to re-write all my initial value formulas to take the time of week field into account