State Changes when Active is set to False for a scoped application

I have a scoped application with a table that extends the task table. The state field is inherited from task table but I have created my own choices [Choice and Numeric Values] -

Open   1,

Work in progress 2,

Pending 3,

Resolved 5,

Closed complete  7

Closed Incomplete  8

When I mark the Active state to false the state automatically changes to pending.