@PetSerAl,
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Code changes look good - we do need the cla to be signed before it can be merged.

@PetSerAl Thanks for your contribution!
I updated the title to reflect the change. It's recommended to have a meaningful PR title describing what changes you made (see the guideline in CONTRIBUTING.md).

Hi, I am closing and re-opening this PR to bump the CLA bot. Sorry for the inconvenience!

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One possible breaking change came to my mind:

$a = ,,$false
$b = ,[PSObject](,$false)
!!$a # $true
!!$b # was $false, now is $true

So, this PR make PowerShell behavior more consistent in regard to wrapping array into [PSObject]. But, is this change in behavior acceptable, @daxian-dbw?

I think the behavior with the fix reflects the original intention of the code. Here is the comment in "case 1" before returning true:

// the first element is an array with more than zero elements
return true;

And as you said, now the conversion is more consistent:
Before Fix

$true -eq $a
True
$true -eq $b
False

After Fix

$true -eq $a
True
$true -eq $b
True

Using a nested array in if condition should be rare. I think this behavior change is acceptable. @lzybkr any thoughts?

It's definitely obscure, I'm not worried about the change.