[modeller_usage] The number of sequences in CHAINS_all.seq

Dear all,

I found an unusual thing... Why is there so many duplicated sequences in modlib/CHAINS_all.seq?

$ cat CHAINS_all.seq | grep "^>" | wc -l 118200

$ cat CHAINS_all.seq | grep "^>" | sort | uniq | wc -l 59796

Thank you very much!