#54 Array members (ie $_[0]) evaluate to <undef> on mouseover

[Aaron W]

I don't know if anyone else has noticed this, but

When you put your mouse over a scalar variable that's a
member of an array, like $_[x], or $ARGV[x], or
anything, it will display as "<undef>", even if the
variable is defined.

Individual array members and arrays will evaluate
correctly if they are in the variable watch window, but
array members are always seem to be <undef> on
mouseover in the code window.