$ git clone -n https://src.fedoraproject.org/rpms/avr-gcc.git /var/lib/mock/f31-build-55374-28123/root/chroot_tmpdir/scmroot/avr-gcc
Cloning into '/var/lib/mock/f31-build-55374-28123/root/chroot_tmpdir/scmroot/avr-gcc'...
$ git reset --hard d446db8e3ae0641494beee9e7f4f8966fb046ded
HEAD is now at d446db8 update to 7.4.0