conditionals

[lisa***]

good day!

yesterday,i tried answering an exercise on conditionals.
one number confused me a lot.

If she gets the job she's applied for, she would be delighted.
i assume she's got a good chance of getting it.

i understand that if we talk of real possibilities, we use if+s.present, present and if+past, past.
why was it possible to use the simple pst of will.
thank you!

[Tdol]

It looks like a mistake to me- where did you see it?