Worked on the sympy/sympy repository to address a bug in boolean logic simplification, specifically improving the handling of the dontcare argument in the simplify_logic function. Focused on correcting edge-case behavior by ensuring that dontcare values are properly respected during logic simplification, which led to more accurate results and reduced errors in downstream logic processing. Enhanced reliability by adding targeted regression tests to validate the new behavior and prevent future regressions. Utilized Python programming, logic design, and testing skills throughout the process, contributing to the overall correctness and maintainability of symbolic logic operations within the codebase.