Sequence search doesn't work

[cl117]

1. Without sbolexplorer, sequence search -> raw sequence -> exactly search -> work for SBH deployment and local 7777 with raw sequnce. It works for fasta file uploaded.

2. It's the same for dev2.

Test case: aaagaggagaaa

[cjmyers]

Seems it was intermittent issue. Working now, but will wait to see next time it crashes.