diff --git a/src/backend/replication/logical/reorderbuffer.c b/src/backend/replication/logical/reorderbuffer.c
index e9d57b4..5c69359 100644
--- a/src/backend/replication/logical/reorderbuffer.c
+++ b/src/backend/replication/logical/reorderbuffer.c
@@ -2200,6 +2200,7 @@ ReorderBufferAddNewTupleCids(ReorderBuffer *rb, TransactionId xid,
 	change->data.tuplecid.cmax = cmax;
 	change->data.tuplecid.combocid = combocid;
 	change->lsn = lsn;
+	change->txn = txn;
 	change->action = REORDER_BUFFER_CHANGE_INTERNAL_TUPLECID;
 
 	dlist_push_tail(&txn->tuplecids, &change->node);
@@ -2479,7 +2480,7 @@ ReorderBufferSerializeTXN(ReorderBuffer *rb, ReorderBufferTXN *txn)
 
 	/* update the statistics */
 	rb->spillCount += 1;
-	rb->spillTxns += txn->serialized ? 1 : 0;
+	rb->spillTxns += txn->serialized ? 0 : 1;
 	rb->spillBytes += size;
 
 	Assert(spilled == txn->nentries_mem);
@@ -3292,7 +3293,7 @@ ReorderBufferToastReplace(ReorderBuffer *rb, ReorderBufferTXN *txn,
 		return;
 
 	/*
-	 * We're going modify the size of the change, so to make sure the
+	 * We're going to modify the size of the change, so to make sure the
 	 * accounting is correct we'll make it look like we're removing the
 	 * change now (with the old size), and then re-add it at the end.
 	 */
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 5d7e687..c7252cf 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -192,7 +192,6 @@ static bool check_maxconnections(int *newval, void **extra, GucSource source);
 static bool check_max_worker_processes(int *newval, void **extra, GucSource source);
 static bool check_autovacuum_max_workers(int *newval, void **extra, GucSource source);
 static bool check_max_wal_senders(int *newval, void **extra, GucSource source);
-static bool check_logical_decoding_work_mem(int *newval, void **extra, GucSource source);
 static bool check_autovacuum_work_mem(int *newval, void **extra, GucSource source);
 static bool check_effective_io_concurrency(int *newval, void **extra, GucSource source);
 static void assign_effective_io_concurrency(int newval, void *extra);
@@ -2261,8 +2260,8 @@ static struct config_int ConfigureNamesInt[] =
 			GUC_UNIT_KB
 		},
 		&logical_decoding_work_mem,
-		-1, -1, MAX_KILOBYTES,
-		check_logical_decoding_work_mem, NULL, NULL
+		65536, 64, MAX_KILOBYTES,
+		NULL, NULL, NULL
 	},
 
 	/*
@@ -11300,28 +11299,6 @@ check_max_wal_senders(int *newval, void **extra, GucSource source)
 }
 
 static bool
-check_logical_decoding_work_mem(int *newval, void **extra, GucSource source)
-{
-	/*
-	 * -1 indicates fallback.
-	 *
-	 * If we haven't yet changed the boot_val default of -1, just let it be.
-	 * logical decoding will look to maintenance_work_mem instead.
-	 */
-	if (*newval == -1)
-		return true;
-
-	/*
-	 * We clamp manually-set values to at least 64kB. The maintenance_work_mem
-	 * uses a higher minimum value (1MB), so this is OK.
-	 */
-	if (*newval < 64)
-		*newval = 64;
-
-	return true;
-}
-
-static bool
 check_autovacuum_work_mem(int *newval, void **extra, GucSource source)
 {
 	/*
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 00a22b8..04529aa 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -130,7 +130,7 @@
 #work_mem = 4MB				# min 64kB
 #maintenance_work_mem = 64MB		# min 1MB
 #autovacuum_work_mem = -1		# min 1MB, or -1 to use maintenance_work_mem
-#logical_decoding_work_mem = 64MB	# min 1MB, or -1 to use maintenance_work_mem
+i#logical_decoding_work_mem = 64MB	# min 64kB
 #max_stack_depth = 2MB			# min 100kB
 #shared_memory_type = mmap		# the default is the first option
 					# supported by the operating system: