Asynchronous procedures losing current exception in exception handler.

[cheatfate]

Example

import asyncdispatch

proc test1() {.async.} =
  try:
    raise newException(ValueError, "Test1")
  except:
    await sleepAsync(200)
    raise

when isMainModule:
  waitFor test1()

Current Output

Exception message: no exception to reraise
Exception type: [ReraiseError]

Expected Output

Exception message: Test1
Exception type: [ValueError]