$ git clone -n https://src.fedoraproject.org/rpms/filesystem.git /var/lib/mock/f39-build-730005-102272/root/chroot_tmpdir/scmroot/filesystem
Cloning into '/var/lib/mock/f39-build-730005-102272/root/chroot_tmpdir/scmroot/filesystem'...
$ git reset --hard 02f4c34c92c42ddef004ba3bafb3aad4e0bebc3c
HEAD is now at 02f4c34 Add /etc/keys for initrd/kernel related keys