bug reoport
I found the bug on the linux mint cinamon 20.2(uma), in file manager Nemo. you can see the bug i found on this stackoverflow page
in short, high priority guesses override the type that was determined by the file extension.
for example a .py file is determined not by the file extension but by the magic function
please forgive me for my English(i from Russia) and for my short bug report, i understand very little about this, but this is what i understood from the person who helped me. I think what you will understand more if you you look at the link i attached.
Edited by Alex alexeev