Streams: update listpack with new pointer in XDEL

src/t_stream.c

@@ -724,6 +724,9 @@ void streamIteratorRemoveEntry(streamIterator *si, streamID *current) {
         p = lpNext(lp,p); /* Seek deleted field. */
         aux = lpGetInteger(p);
         lp = lpReplaceInteger(lp,&p,aux+1);
+
+        /* Update the listpack with the new pointer. */
+        raxInsert(si->stream->rax,si->ri.key,si->ri.key_len,lp,NULL);
     }
 
     /* Update the number of entries counter. */