ITS#8300 fix node_move

Don't adjust other cursors when we added a node on the right.

libraries/liblmdb/mdb.c

@@ -7719,6 +7719,8 @@ mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst)
 		MDB_dbi dbi = csrc->mc_dbi;
 		MDB_page *mp;
 
+		/* If we're adding on the left, bump others up */
+		if (!cdst->mc_ki[csrc->mc_top]) {
 			mp = cdst->mc_pg[csrc->mc_top];
 			for (m2 = csrc->mc_txn->mt_cursors[dbi]; m2; m2=m2->mc_next) {
 				if (csrc->mc_flags & C_SUB)
@@ -7731,6 +7733,7 @@ mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst)
 					m3->mc_ki[csrc->mc_top]++;
 				}
 			}
+		}
 
 		mp = csrc->mc_pg[csrc->mc_top];
 		for (m2 = csrc->mc_txn->mt_cursors[dbi]; m2; m2=m2->mc_next) {