Development version of WebIDE does not check types in expressions

[Mingun]

https://ide.kaitai.io/devel/ (and thus the current master for WebIDE) does not report an error when expected type of expression does not match the expression type:

meta:
  id: uncompatible_types_bug
  encoding: utf-8
seq:
  - id: before
    type: strz
  - id: value
    size: before

compiled succesfully