[bug] MATH grader: \lvert/\rvert absolute value never peels — \boxed{\lvert -4\rvert} ≠ 4

[marktech0813]

Problem

LaTeX absolute-value delimiters \lvert / \rvert (and \left|...\right| after sizing strip) never become a value:

normalize_math_answer(r"\lvert -4\rvert")  # "\lvert-4\rvert"
score_text("math500", r"\boxed{\lvert -4\rvert}", "4")   # 0.0
score_text("math500", r"\boxed{\left|-4\right|}", "4")    # 0.0

Sibling of ASCII-bar abs (|-4|).

Expected

\lvert -4\rvert / \left|-4\right| grade equal to 4.

Environment

• origin/main