$ git clone -n https://src.fedoraproject.org/rpms/cab.git /var/lib/mock/f31-build-63223-29337/root/chroot_tmpdir/scmroot/cab
Cloning into '/var/lib/mock/f31-build-63223-29337/root/chroot_tmpdir/scmroot/cab'...
$ git reset --hard b55b5dd2c752b6ab1458a99a5e896a5075497d9c
HEAD is now at b55b5dd - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild