Merge pull request PowerDNS#13096 from Habbie/lmdb-do-reset-index-tim…

…estamp

auth lmdb: when broadcasting indexes, -do- rewrite them even if they are unchanged

ext/lmdb-safe/lmdb-typed.hh

@@ -164,10 +164,8 @@ struct LMDBIndexOps
 
     MDBOutVal currentvalue;
 
-    // check if the entry already exists, so we don't uselessly bump the timestamp
-    if (txn->get(d_idx, combined, currentvalue) == MDB_NOTFOUND) {
-      txn->put(d_idx, combined, empty, flags);
-    }
+    // if the entry existed already, this will just update the timestamp/txid in the LS header. This is intentional, so objects and their indexes always get synced together.
+    txn->put(d_idx, combined, empty, flags);
   }
 
   void del(MDBRWTransaction& txn, const Class& t, uint32_t id)