Import wiredtiger: 280c572c8097a322e429a349f73135266f3faacf from branch mongodb-4.2

ref: 1a1197ef3c..280c572c80
for: 4.2.1

WT-4344       Add more test cases for metadata salvage
WT-4460       Optimize for in-order, non-overlapping modifications
WT-4858       Add compatibility support for gcc-9 and clang-8
WT-4909       Fix potential code caching/re-ordering issue in __search_insert_append
WT-4917       Fix test/format where truncate operations not correctly compared with previous updates
WT-4946       Tighten up failure checks for cursor join
WT-4956       Handle the case where 4 billion updates are made to a page without eviction
WT-4957       Revert part of a change about when pages are queued for urgent eviction
WT-4963       Add debugging for rare test hang
WT-4965       Disable problematic eviction during checkpoints
WT-5036       Fix test/format where tracking buffer wrap causes repeatable operation failure
WT-5038       Prevent eviction of prepared updates during commit
WT-5040       Add dumping of cursor's page on a mismatch
WT-5050       Assertion failure during urgent eviction of metadata page
WT-5054       Fix test/format bug where truncation operations could fail repeatable read testing

1 files changed, 1 insertions, 1 deletions

diff --git a/src/third_party/wiredtiger/import.data b/src/third_party/wiredtiger/import.data
index b50a7f09165..2673308c46e 100644
--- a/src/third_party/wiredtiger/import.data
+++ b/src/third_party/wiredtiger/import.data
@@ -1,5 +1,5 @@
 {
-    "commit": "1a1197ef3c891458cd73290ad9b01c1e969f7e86", 
+    "commit": "280c572c8097a322e429a349f73135266f3faacf", 
     "github": "wiredtiger/wiredtiger.git", 
     "vendor": "wiredtiger", 
     "branch": "mongodb-4.2"