skip the hidden t:formdata field when searching for the input inside a DateField container (fixes issues when DateField is contained in a Zone)
diff --git a/tapestry-core/src/main/coffeescript/META-INF/modules/t5/core/datefield.coffee b/tapestry-core/src/main/coffeescript/META-INF/modules/t5/core/datefield.coffee
index 02ed397..50cc947 100644
--- a/tapestry-core/src/main/coffeescript/META-INF/modules/t5/core/datefield.coffee
+++ b/tapestry-core/src/main/coffeescript/META-INF/modules/t5/core/datefield.coffee
@@ -60,7 +60,7 @@
 
     class Controller
       constructor: (@container) ->
-        @field = @container.findFirst "input"
+        @field = @container.findFirst 'input:not([name="t:formdata"])'
         @trigger = @container.findFirst "button"
 
         @trigger.on "click", =>