The only exception is if the Project edition or feature requires a different license. In that case, you agree to license any text you contribute under that particular license. Please note that these licenses do allow commercial uses of your contributions, as long as such uses are compliant with the terms.
Where you own Sui Generis Database Rights covered by CC BY-SA 4.0, you waive these rights. As an example, this means facts you contribute to the projects may be reused freely without attribution.