Cannot access static object field after passing it to macro

[nitely]

I get "Error: undeclared field: 'a'" when trying to access a static object field after passing it to a macro.

Example

import macros

type
  FooBar = object
    a: seq[int]

macro genFoobar(fb: static FooBar): untyped =
  result = newStmtList()
  for b in fb.a:
    result.add(newCall(bindSym"echo", newLit b))

proc foobar(fb: static FooBar) =
  genFoobar(fb)
  # Error: undeclared field: 'a'
  for b in fb.a:
    echo "foo" & $b

proc main() =
  const a: seq[int] = @[1, 2, 3]
  const fb = Foobar(a: a)
  foobar(fb)
main()

Current Output

Error: undeclared field: 'a'

Expected Output

1
2
3
foo1
foo2
foo3

Additional Information

• I tried in Nim devel and v1.0.4

$ nim -v
Nim Compiler Version 1.1.1 [Linux: amd64]
Compiled at 2020-01-24
Copyright (c) 2006-2019 by Andreas Rumpf

active boot switches: -d:release

[metagn]

For some reason the error message changes when you add a single line

import macros

type
  FooBar = object
    a: seq[int]

macro genFoobar(fb: static FooBar): untyped =
  result = newStmtList()
  for b in fb.a:
    result.add(newCall(bindSym"echo", newLit b))

proc foobar(fb: static FooBar) =
  genFoobar(fb)
  echo fb.type # added line, same error when wrapped in static:
  for b in fb.a:
    echo "foo" & $b

proc main() =
  const a: seq[int] = @[1, 2, 3]
  # Error: type mismatch: got <array[0..2, int]> but expected 'seq[int]'
  const fb = Foobar(a: a)
  foobar(fb)
main()

So this is some ownership/GC problem?

[nitely]

Works in devel now. However, @hlaaftana code fails with: Error: type mismatch: got <array[0..2, int]> but expected 'seq[int]', replacing fb.type by type(fb) compiles.

[metagn]

Second example also works now probably since #24224