The state Ethics Commission has exonerated Selectwoman Martha Gjesteby of a conflict-of-interest charge brought by her board in January 2013. The board alleged that in an e-mail to a private citizen, Gjesteby had disclosed “sensitive information about the Acting Town Manager” from the town attorney. “Based on [our] review, and on any necessary follow-up investigation, we have decided that this matter does not warrant further action,” the commission wrote in a letter dated June 2013 and released by Gjesteby late last month. The current five-member Board of Selectmen has two members who were not on the board when the complaint was filed. Gjesteby said she has spent $9,226 in legal fees on the matter.