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-rw-r--r--edit.mu1
1 files changed, 1 insertions, 0 deletions
diff --git a/edit.mu b/edit.mu
index 687a1661..90becd29 100644
--- a/edit.mu
+++ b/edit.mu
@@ -9,6 +9,7 @@ recipe main [
 recipe draw-bounding-box [
   default-space:address:array:location <- new location:type, 30:literal
   screen:address <- next-ingredient
+  # sanity-check the box bounds
   top:number <- next-ingredient
   {
     out?:boolean <- lesser-than top:number, 0:literal