$ git clone -n https://src.fedoraproject.org/rpms/CriticalMass.git /var/lib/mock/f31-build-64453-29564/root/chroot_tmpdir/scmroot/CriticalMass
Cloning into '/var/lib/mock/f31-build-64453-29564/root/chroot_tmpdir/scmroot/CriticalMass'...
$ git reset --hard c24b7813ef71a3997caf21fa130137a007652681
HEAD is now at c24b781 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild