> If you output null for theattributevalue, theattributeis not
> rendered:

I've just upgraded from 1.0 to 1.1-M6, and this doesn't seem to work
any more - could this be a bug in M6?

Message: scala.MatchError: null
        scala.runtime.ScalaRunTime$.boxArray(ScalaRunTime.scala:136)
        net.liftweb.util.BindHelpers$class.mix$1(BindHelpers.scala:612)
        net.liftweb.util.BindHelpers$class.net$liftweb$util$BindHelpers$
$bindByNameMixIn(BindHelpers.scala:618)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind$1$1$
$anonfun$apply$27.apply(BindHelpers.scala:440)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind$1$1$
$anonfun$apply$27.apply(BindHelpers.scala:436)
        net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:436)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:424)
        scala.Seq$class.flatMap(Seq.scala:294)
        scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.in_bind$1
(BindHelpers.scala:424)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:444)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:424)
        scala.Seq$class.flatMap(Seq.scala:294)
        scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.in_bind$1
(BindHelpers.scala:424)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:444)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:424)
        scala.Seq$class.flatMap(Seq.scala:294)
        scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.in_bind$1
(BindHelpers.scala:424)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:444)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:424)
        scala.Seq$class.flatMap(Seq.scala:294)
        scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.in_bind$1
(BindHelpers.scala:424)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:444)
        net.liftweb.util.BindHelpers$$anonfun$bind$2$$anonfun$in_bind
$1$1.apply(BindHelpers.scala:424)
        scala.Seq$class.flatMap(Seq.scala:294)
        scala.xml.NodeSeq.flatMap(NodeSeq.scala:34)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.in_bind$1
(BindHelpers.scala:424)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.apply(BindHelpers.scala:
449)
        net.liftweb.util.BindHelpers$$anonfun$bind$2.apply(BindHelpers.scala:
409)
        net.liftweb.util.ThreadGlobal.doWith(ThreadGlobal.scala:65)
        net.liftweb.util.BindHelpers$class.bind(BindHelpers.scala:409)
        net.liftweb.util.Helpers$.bind(Helpers.scala:29)
        net.liftweb.util.BindHelpers$class.bind(BindHelpers.scala:380)
        net.liftweb.util.Helpers$.bind(Helpers.scala:29)


>
> scala> bind("stuff", <input type="checkbox" stuff:s=""/>, 
> AttrBindParam("s",Text("checked"),"checked"))
> res11: scala.xml.NodeSeq = <input type="checkbox" checked="checked"></input>
>
> scala> bind("stuff", <input type="checkbox" stuff:s=""/>, 
> AttrBindParam("s",null,"selected"))            
> res12: scala.xml.NodeSeq = <input type="checkbox" ></input>
>
> /Jeppe

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