Class for fixing operations on faces Initializes by shape Fixing case of spot face Fixing case of spot face, if tol = -1 used local tolerance Compute average vertex and replacing vertices by new one Remove spot face from compound Fixing case of strip face, if tol = -1 used local tolerance Remove strip face from compound Fixes cases related to split faces within the given shape. It may return a modified shape after fixing the issues. Fixes issues related to the specified face and returns the modified face. Fixes issues in the overall geometric shape. This function likely encapsulates higher-level fixes that involve multiple faces or elements. Returns the current state of the geometric shape after potential modifications.