Why, if I change a couple of lines, does the diff show up in the entire file?

Question

phpstorm

I use PhpStorm 2019.2, change a couple of lines, push it all, and on the github it shows as if I became the author of the file. All lines go red, then all the same lines turn green.
Changed line separators to Unix - did not help. Someone met / was able to fix?
and I only deleted sections in the code, I did not add new code.
ps fixed, below wrote the solution

Answer 1

The solution helped: git config --global core.autocrlf false
If phpstorm asks you to commit/push Commit as it or fix something there, choose Commit as it