filter/count: Fix alignment on 32-bit systems.

filter/count/tq.go

Index: filter/count/tq.go
diff --git a/filter/count/tq.go b/filter/count/tq.go
index 379e69d3dc8956e190a35b4775d766dca8725f8c..bc0426b0c3611d010cd54e2ce4b45e8c0d53aff3 100644
--- a/filter/count/tq.go
+++ b/filter/count/tq.go
@@ -49,6 +49,11 @@ func (t *tqCounter) Testable() tq.Testable {
 // FilterTQ installs a counter TaskQueue filter in the context.
 func FilterTQ(c context.Context) (context.Context, *TQCounter) {
 	state := &TQCounter{}
+	state.AddMulti.init()
+	state.DeleteMulti.init()
+	state.Purge.init()
+	state.Stats.init()
+
 	return tq.AddRawFilters(c, func(ic context.Context, tq tq.RawInterface) tq.RawInterface {
 		return &tqCounter{state, tq}
 	}), state