Tab completion don't work for $error

[iSazonov]

Steps to reproduce

5/0
$error[0].<tab>

Expected behavior

Tab completion substitutes property names (CategoryInfo, Exception ...)

Actual behavior

Tab completion don't work.

Environment data

All (Windows and Windows Core) PowerShell versions.

[SteveL-MSFT]

Workaround is:

$global:error[0].<tab>

Did some debugging, command completion finds another variable named Error in a lower scope which is empty so nothing to tab complete. Still investigating.