[trafficserver] Diff for: [GitHub] zwoop merged pull request #4780: Don't allow the old body to be used when refreshing

[GitBox]

diff --git a/iocore/cache/CacheWrite.cc b/iocore/cache/CacheWrite.cc
index cd873ef40a..f81cf8da4e 100644
--- a/iocore/cache/CacheWrite.cc
+++ b/iocore/cache/CacheWrite.cc
@@ -90,7 +90,7 @@ CacheVC::updateVector(int /* event ATS_UNUSED */, Event * /* 
e ATS_UNUSED */)
           return openWriteCloseDir(EVENT_IMMEDIATE, nullptr);
         }
       }
-      if (update_key == od->single_doc_key && (total_len || !vec)) {
+      if (update_key == od->single_doc_key && (total_len || f.allow_empty_doc 
|| !vec)) {
         od->move_resident_alt = false;
       }
     }
@@ -1113,11 +1113,11 @@ CacheVC::openWriteCloseDir(int /* event ATS_UNUSED */, 
Event * /* e ATS_UNUSED *
   }
   if (is_debug_tag_set("cache_update")) {
     if (f.update && closed > 0) {
-      if (!total_len && alternate_index != CACHE_ALT_REMOVED) {
+      if (!total_len && !f.allow_empty_doc && alternate_index != 
CACHE_ALT_REMOVED) {
         Debug("cache_update", "header only %d (%" PRIu64 ", %" PRIu64 ")", 
DIR_MASK_TAG(first_key.slice32(2)), update_key.b[0],
               update_key.b[1]);
 
-      } else if (total_len && alternate_index != CACHE_ALT_REMOVED) {
+      } else if ((total_len || f.allow_empty_doc) && alternate_index != 
CACHE_ALT_REMOVED) {
         Debug("cache_update", "header body, %d, (%" PRIu64 ", %" PRIu64 "), 
(%" PRIu64 ", %" PRIu64 ")",
               DIR_MASK_TAG(first_key.slice32(2)), update_key.b[0], 
update_key.b[1], earliest_key.b[0], earliest_key.b[1]);
       } else if (!total_len && alternate_index == CACHE_ALT_REMOVED) {


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