$ git clone -n https://src.fedoraproject.org/rpms/mcpp.git /var/lib/mock/f31-build-86525-31688/root/chroot_tmpdir/scmroot/mcpp
Cloning into '/var/lib/mock/f31-build-86525-31688/root/chroot_tmpdir/scmroot/mcpp'...
$ git reset --hard 33bbc877e9d1e7fbf0002e5d33b08b37431e7b7f
HEAD is now at 33bbc87 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild