pattern_is_product = 0x0004, ///< used internally by expairseq::subschildren()
pattern_is_not_product = 0x0008, ///< used internally by expairseq::subschildren()
no_index_renaming = 0x0010,
pattern_is_product = 0x0004, ///< used internally by expairseq::subschildren()
pattern_is_not_product = 0x0008, ///< used internally by expairseq::subschildren()
no_index_renaming = 0x0010,