[t:4759] Checking in MSN fix found due to recent test changes.

git-svn-id: file:///svn/toku/tokudb@42485 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt-serialize.c

@@ -574,7 +574,7 @@ rebalance_brtnode_leaf(BRTNODE node, unsigned int basementnodesize)
     u_int32_t tmp_seqinsert = BLB_SEQINSERT(node, num_orig_basements - 1);
 
     // choose the max msn applied to any basement as the max msn applied to all new basements
-    MSN max_msn = MIN_MSN;
+    MSN max_msn = ZERO_MSN;
     for (uint32_t i = 0; i < num_orig_basements; i++) {
         MSN curr_msn = BLB_MAX_MSN_APPLIED(node,i);
         max_msn = (curr_msn.msn > max_msn.msn) ? curr_msn : max_msn;

newbrt/brt.c

@@ -1431,7 +1431,7 @@ toku_initialize_empty_brtnode (BRTNODE n, BLOCKNUM nodename, int height, int num
     else
 	STATUS_VALUE(BRT_CREATE_NONLEAF)++;
 
-    n->max_msn_applied_to_node_on_disk = MIN_MSN;    // correct value for root node, harmless for others
+    n->max_msn_applied_to_node_on_disk = ZERO_MSN;    // correct value for root node, harmless for others
     n->h = h;
     n->nodesize = nodesize;
     n->flags = flags;