Add warning

theofidry · theofidry · commit d16e1ffcd2b4 · 2016-02-14T11:30:08.000Z
diff --git a/reference/constraints/Length.rst b/reference/constraints/Length.rst
@@ -1,7 +1,7 @@
 Length
 ======
 
-Validates that a given string length is *between* some minimum and maximum
+Validates that a given string length is *between* some minimum (if is not null or blank, cf. the `min`_ option) and maximum
 value.
 
 +----------------+----------------------------------------------------------------------+

-Original file line number
+Diff line change
@@ @@ -1,7 +1,7 @@ @@
 Length
 ======
 -Validates that a given string length is *between* some minimum and maximum
 +Validates that a given string length is *between* some minimum (if is not null or blank, cf. the `min`_ option) and maximum
 value.
 +----------------+----------------------------------------------------------------------+