1 files changed, 1 insertions, 1 deletions
diff --git a/undo.lua b/undo.lua
index 912c949..873feea 100644
--- a/undo.lua
+++ b/undo.lua
@@ -58,7 +58,7 @@ function snapshot(State, s,e)
   -- deep copy lines without cached stuff like text fragments
   for i=s,e do
     local line = State.lines[i]
-    table.insert(event.lines, {data=line.data})
+    table.insert(event.lines, {data=line.data})  -- I've forgotten: should we deepcopy(line.data)?
   end
   return event
 end