$ git clone -n https://src.fedoraproject.org/rpms/ghc-happstack-server.git /var/lib/mock/f45-build-10360-416/root/chroot_tmpdir/scmroot/ghc-happstack-server
Cloning into '/var/lib/mock/f45-build-10360-416/root/chroot_tmpdir/scmroot/ghc-happstack-server'...
$ git fetch origin 22f34eff58ec431ccff6120b393e46052d2bd9fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-happstack-server
 * [new ref]         22f34eff58ec431ccff6120b393e46052d2bd9fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22f34ef Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild