$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-gtk.git /var/lib/mock/f45-build-10326-415/root/chroot_tmpdir/scmroot/ghc-gi-gtk
Cloning into '/var/lib/mock/f45-build-10326-415/root/chroot_tmpdir/scmroot/ghc-gi-gtk'...
$ git fetch origin de82fefc2e81bdc1a6c8aa5b87c1506c7926a586:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-gtk
 * [new ref]         de82fefc2e81bdc1a6c8aa5b87c1506c7926a586 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de82fef Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild