Do digitals always have 2 lines when taken apart?

Moo

Hey all, so i had a faint positive last week and I had a feeling i should take another test. I only have digitals so i figured if it's been a week it would be positive. It said "not pregnant"

I took the test apart immediately after and it had two blazing lines. Is this normal? Does it not mean anything to have two lines? Pic for reference

edit: here's another, better photo. is it always this dark???