Fix AV1/ResizeModeTestLarge.ResizeModeTest/14

Before this CL, apply_filtering will be triggered with overlay
frame. This will make
cpi->source = av1_realloc_and_scale_if_required() happen in the
end of denoise_and_encode().

BUG=aomedia:3194

Change-Id: I38a7dd63fd0dc4708931bc01f5707744e914ad16

av1/encoder/encode_strategy.c

diff --git a/av1/encoder/encode_strategy.c b/av1/encoder/encode_strategy.c
index a01bad6..53cab3c 100644
--- a/av1/encoder/encode_strategy.c
+++ b/av1/encoder/encode_strategy.c
@@ -971,6 +971,9 @@
   // Decide whether to apply temporal filtering to the source frame.
   int apply_filtering =
       av1_is_temporal_filter_on(oxcf) && !is_stat_generation_stage(cpi);
+  if (update_type != KF_UPDATE && update_type != ARF_UPDATE && !is_second_arf) {
+    apply_filtering = 0;
+  }
   if (apply_filtering) {
     if (frame_params->frame_type == KEY_FRAME) {
       // TODO(angiebird): Move the noise level check to av1_tf_info_filtering.