Compiler cannot find injected symbol when both proc and template are generic

[Clonkk]

Example

type
  Foo = object
    k: int

proc init*(t: typedesc[Foo]): Foo =
  result = Foo()

type
  Bar = object

template withObj*[T: object](body: untyped) =
  block:
    var obj {.inject.} = init(typedesc[T])
    body

proc dummy1*() =
  withObj[Foo]():
    echo obj

proc dummy2*(t: typedesc[Bar]) =
  # Does not compile
  withObj[Foo]():
    echo obj

proc dummy3*[T: object]() =
  # Does not compile
  withObj[T]():
    echo obj

when isMainModule:
  dummy1()
  Bar.dummy2()
  dummy3[Foo]()

Current Output

foo.nim(23, 10) Error: undeclared identifier: 'obj'

Note that both dummy2 & dummy3 do not compile (both with the same error on different line) while dummy1 works.

Expected Output

Program should compile and run, echo-ing 3 empty Foo object

(k: 0)
(k: 0)
(k: 0)

Additional Information

This looks similar / related to #19556.
Also relevant ? nim-lang/RFCs#402

Tested with Nim release v1.6.6 and latest devel :

$ nim -v
Nim Compiler Version 1.7.1 [Linux: amd64]
Compiled at 2022-07-17
Copyright (c) 2006-2022 by Andreas Rumpf

git hash: 0d8bec695606a65c5916d0da7fcb0a976a4e1f7b
active boot switches: -d:release

[metagn]

Changing to template withObj*(T: typedesc[object], body: untyped) is a workaround. nim-lang/RFCs#402 is not related because overloading isn't relevant here.