1 files changed, 3 insertions, 0 deletions
diff --git a/src/TODO b/src/TODO
index 2f95ac08..67ec951d 100644
--- a/src/TODO
+++ b/src/TODO
@@ -1,3 +1,6 @@
+- What does SEQUENCE + VALUE mean in XPath?  Does it add VALUE to
+  every member of SEQUENCE?
+
 - Add tracing code for functions that records call count and total
   time spent, as well as average time per call.  This would implement
   selective profiling.