$ git clone -n https://src.fedoraproject.org/rpms/perl-Gnome2-Wnck.git /var/lib/mock/f31-build-72632-30828/root/chroot_tmpdir/scmroot/perl-Gnome2-Wnck
Cloning into '/var/lib/mock/f31-build-72632-30828/root/chroot_tmpdir/scmroot/perl-Gnome2-Wnck'...
$ git reset --hard 3168224bf375c4c9613b4eb3880cb379eea8bb18
HEAD is now at 3168224 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild