$ git clone -n https://github.com/xcp-ng-rpms/r8169-module-alt.git /var/lib/mock/v8.1-testing-2163-1709/root/chroot_tmpdir/scmroot/r8169-module-alt
Cloning into '/var/lib/mock/v8.1-testing-2163-1709/root/chroot_tmpdir/scmroot/r8169-module-alt'...
$ git reset --hard af5ed82db4d6ac51ead55c82347947a084d68e53
Downloading SOURCES/r8169-4.19.128.tar.gz (78 KB)
HEAD is now at af5ed82 Adding Realtek driver r8169 from kernel 4.19.128