first-value-of() fixed to maybe receive lists
first-value-of() fixed to maybe receive lists

hashamali/pyScss,Kronuz/pyScss,Kronuz/pyScss,Kronuz/pyScss,hashamali/pyScss,cpfair/pyScss,hashamali/pyScss,Kronuz/pyScss,cpfair/pyScss,cpfair/pyScss