Article 5MM6N Does Kubuntu come with a EXECUTABLE damage feature?

Does Kubuntu come with a EXECUTABLE damage feature?

by
vmelkon
from LinuxQuestions.org on (#5MM6N)
Allo all,
This is about Krita.
So, I had downloaded the Krita source code, I changed it a little and compiled it.

I have Kubuntu 20.10
I installed Krita from Discover.
I deleted the EXECUTABLE which is at
/usr/bin/krita

and I placed my custom krita there.

It works but on the next day, it looks like my executable is gone and the original executable is back.
I thought I did something wrong so I did it again.
Later on, the original executable is back.
What is going on?

My modified Krita is here
https://sourceforge.net/projects/krita2/

It is version 4.3.0

Does Kubuntu come with a EXECUTABLE damage feature?
Is it like Windows 2000 where it does not let you change its files?latest?d=yIl2AUoC8zA latest?i=VnJGJge7E_8:kVS4W3q4lLg:F7zBnMy latest?i=VnJGJge7E_8:kVS4W3q4lLg:V_sGLiP latest?d=qj6IDK7rITs latest?i=VnJGJge7E_8:kVS4W3q4lLg:gIN9vFwVnJGJge7E_8
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