Play 2.0 test failure with Scala 2.10.0-M1

gistfile1.txt

[error]     assertion failed: originalOwner is not kept in presentation compiler runs. (Symbols.scala:1498)
[error] scala.Predef$.assert(Predef.scala:160)
[error] scala.reflect.internal.Symbols$Symbol.originalEnclosingMethod(Symbols.scala:1498)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator.outerName$1(GenJVM.scala:780)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator$$anonfun$addInnerClasses$4.apply(GenJVM.scala:813)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator$$anonfun$addInnerClasses$4.apply(GenJVM.scala:807)
[error] scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
[error] scala.collection.immutable.List.foreach(List.scala:76)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator.addInnerClasses(GenJVM.scala:807)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator.emitClass(GenJVM.scala:296)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator.generateMirrorClass(GenJVM.scala:1109)
[error] scala.tools.nsc.backend.jvm.GenJVM$BytecodeGenerator.genClass(GenJVM.scala:385)
[error] scala.tools.nsc.backend.jvm.GenJVM$JvmPhase$$anonfun$run$5.apply(GenJVM.scala:167)
[error] scala.tools.nsc.backend.jvm.GenJVM$JvmPhase$$anonfun$run$5.apply(GenJVM.scala:166)
[error] scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
[error] scala.collection.immutable.List.foreach(List.scala:76)
[error] scala.tools.nsc.backend.jvm.GenJVM$JvmPhase.run(GenJVM.scala:166)
[error] scala.tools.nsc.Global$Run.compileUnits(Global.scala:1130)
[error] scala.tools.nsc.Global$Run.compileSources(Global.scala:1105)
[error] scala.tools.nsc.Global$Run.compile(Global.scala:1227)
[error] play.templates.test.Helper$CompilerHelper.compile(TemplateCompilerSpec.scala:124)
[error] play.templates.test.TemplateCompilerSpec$$anonfun$1$$anonfun$apply$3$$anonfun$apply$4.apply(TemplateCompilerSpec.scala:22)
[error] play.templates.test.TemplateCompilerSpec$$anonfun$1$$anonfun$apply$3$$anonfun$apply$4.apply(TemplateCompilerSpec.scala:22)
[error] org.specs2.matcher.Expectable.value(Expectable.scala:21)
[error] org.specs2.matcher.AnyBaseMatchers$$anon$5.apply(AnyMatchers.scala:95)
[error] org.specs2.matcher.Expectable.applyMatcher(Expectable.scala:37)
[error] org.specs2.matcher.MustThrownExpectations$$anon$4.applyMatcher(MustExpectations.scala:31)
[error] org.specs2.matcher.MustExpectable.must(MustExpectable.scala:14)
[error] play.templates.test.TemplateCompilerSpec$$anonfun$1$$anonfun$apply$3.apply(TemplateCompilerSpec.scala:22)
[error] play.templates.test.TemplateCompilerSpec$$anonfun$1$$anonfun$apply$3.apply(TemplateCompilerSpec.scala:20)
[error] org.specs2.specification.Example$$anonfun$apply$1.apply(Fragment.scala:96)
[...]