Cosmetic rule modifiers with some special regexp values are parsed incorrectly

[scripthunter7]

[$domain=/example[0-9]\.(com|org)/]##.ad
!                    ↑
!                    this closing square bracket falsely considered as the end of the modifier block

[$domain=/example\d{1,}\.(com|org)/]##.ad
!                    ↑
!                    this comma falsely considered as a modifier separator