$ git clone -n https://src.fedoraproject.org/rpms/python-matplotlib.git /var/lib/mock/f31-build-84812-31580/root/chroot_tmpdir/scmroot/python-matplotlib
Cloning into '/var/lib/mock/f31-build-84812-31580/root/chroot_tmpdir/scmroot/python-matplotlib'...
$ git reset --hard 3652785c8e973d07d0e36b2f6efed3e77dbf1bde
HEAD is now at 3652785 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild