$ git clone -n https://src.fedoraproject.org/rpms/libwnck.git /var/lib/mock/f31-build-95164-32530/root/chroot_tmpdir/scmroot/libwnck
Cloning into '/var/lib/mock/f31-build-95164-32530/root/chroot_tmpdir/scmroot/libwnck'...
$ git reset --hard f5ea731a62cc60adcfb809a82de2c0a9208e7197
HEAD is now at f5ea731 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild