File size of anexecutable file cloned from github is less than the original

Hello all.
Does anybody have experienced the following?: Size of a executable file that were checkout from github into Jenkins workspace is smaller than the one in github repo

Jenkins setup:
I do not have access rights to run that commands.

If the file is a binary file and git does not know that it is a binary file, then it is possible for git to incorrectly transform the field on some platforms. More information is available in the Git Attributes documentation.