Does Matt Murdock remember his 'brother' Mike as a fictional creation? (SPOILER)

[Montressor]

Now that Mike--made real in the most contrived story of all time-'has written himself into Matt's timeline, does Matt remember him as a false identity he created or was that all wiped away?

[the illustrious mr. kenway]

I imagine the latter.

It's retconned that Matt would pretend to be his brother Mike while he was in prison/away etc.