Fixed minor bugs

[GermanAizek]

Detailed description

@XVilka hi,
I think this commit will be very useful in your project.
Undefined segments variable call clear() after moved value and replace new leak to garantee free unique_ptr

[karliss]

Both of these changes are no good. Please do not spam static analyzer suggestions without spending minimum even minimum effort trying to understand what the code does are attempting to run and test the changes.

If you are actual beginner trying help, I will not take your contribution opportunity way and give you a week or two to fix the change. If something is unclear please ask questions.

[karliss]

I get a feeling that you didn't even try to run the first change.

And you have already been pointed out in other merge requests why the second change pattern isn't correct. There is a room for improving the code, if you read how the structure is used, but I leave that as an exercise for you.

[karliss]

This is going nowhere I am closing the PR.