[ww-bugs] Bug 3703: New: Fails to recognize that I=I in matrix context.

[bugzilla-daemon at webwork.maa.org]

http://bugs.webwork.maa.org/show_bug.cgi?id=3703

           Summary: Fails to recognize that I=I in matrix context.
           Product: WeBWorK 2
           Version: 2.12
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: CG: Scoring
        AssignedTo: gage at math.rochester.edu
        ReportedBy: dabrowsa at indiana.edu
        Web browser Firefox
           version:
    Browser version 48.0
            number:


Here's a MWE.

DOCUMENT();

loadMacros("PGstandard.pl",
"PGML.pl",
"MathObjects.pl"
);

TEXT(&beginproblem);
$showPartialCorrectAnswers = 1;

SRAND(1017);

Context("Matrix");
$id = Value::Matrix->I(3);
Context()->constants->add(I=>$id);
$form = Formula('I');
$ans = Formula('I');

BEGIN_PGML

[`[$form]= `][______]{$ans}.

END_PGML

ENDDOCUMENT();


Then "I" is not accepted as the correct answer. I get the error message:

'Can't locate object method "transferFlags" via package "1" (perhaps you forgot
to load "1"?)'

Oddly this seems to be only a problem with the letter I. You don't suppose WW
could be construing it as a Roman numeral?

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