Hyphenate without inquiry should not hyphenate already hyphenated words in any language, unless the brake is done at one of the existing hyphens.
For instance, terms like Energy-efficient should not be broken as: energy-effi-cient or en-ergy-efficient at the end of a paragraph.
Or at least, there should be a way to prevent it without creating exceptions for every word in this case.
I confirm this behavior and set to NEW.
Ubuntu 14.10 64-bit
Build ID: 40m0(Build:2)
Is nobody working on this after more than two years?
I just encountered it with the compound adjective "temperature-sensitive": LO Writer will happily insert soft hyphens after "tem", after "temper", after "tempera", after "sen", or after "sensi". These additional hyphens all look ugly and violate many style guides.