Repl crashes when redefining name

[b-studios]

The following repl session crashes:

val x = 1 // enter
val x = 1 // enter

with the following stack trace

[error] Internal Compiler Error: Cannot find symbol for IdDef(x)
[error] 	at effekt.util.messages$CompilerPanic$.apply(Messages.scala:24)
[error] 	at effekt.util.messages$ErrorReporter.panic(Messages.scala:59)
[error] 	at effekt.util.messages$ErrorReporter.panic$(Messages.scala:50)
[error] 	at effekt.context.Context.panic(Context.scala:40)
[error] 	at effekt.util.messages$ErrorReporter.panic(Messages.scala:58)
[error] 	at effekt.util.messages$ErrorReporter.panic$(Messages.scala:50)
[error] 	at effekt.context.Context.panic(Context.scala:40)
[error] 	at effekt.context.AnnotationsDB.symbolOf$$anonfun$1(Annotations.scala:366)
[error] 	at scala.Option.getOrElse(Option.scala:201)