"Possible" bug when calling StdCall PBLibrary func

[El_Choni]

Using this as library source:

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format MS COFF

Public PB_Test

Extrn _MessageBoxA@16

section '.text' code readable executable

PB_Test:
  mov eax, [esp+4]
  push 0
  push eax
  push eax
  push 0
  call _MessageBoxA@16
  ret 4

And this as .Desc file (note the StdCall flag):

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ASM
;
1
USER32
;
OBJ
;
0
;
Test.chm
;
Test,String, (String.s)
None | StdCall
;

Works when called through a variable:

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text.s = "This is "+Str(1)+" test"
Test(text)

But fails if the composed string is given directly as an argument:

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Test("This is "+Str(1)+" test")

(BTW, this is the reason I haven't released TailBite yet...)