Derefshan, who revealed the verdict to local media Sunday, says she is on a pardon list but the release procedures are still underway.
There was no official comment.
Movahed, 32, was dubbed the "Girl of Enghelab Street" and briefly arrested in 2017 after she took off her headscarf and held it in the air.
Authorities detained 29 women on similar charges the following year.
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