$ git clone -n https://src.fedoraproject.org/rpms/gnome-shell-extension-just-perfection.git /var/lib/mock/f45-build-11529-432/root/chroot_tmpdir/scmroot/gnome-shell-extension-just-perfection
Cloning into '/var/lib/mock/f45-build-11529-432/root/chroot_tmpdir/scmroot/gnome-shell-extension-just-perfection'...
$ git fetch origin 73cb4fb53eebbcbfab4783a92006561892204942:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-shell-extension-just-perfection
 * [new ref]         73cb4fb53eebbcbfab4783a92006561892204942 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73cb4fb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild