CurveAssetManagerHelper::_validateAssets() should check that the number of assets provided is smaller than the maximum of the pool
Description
CurveAssetManagerHelper::_validateAssets() allows sending assets with indexes bigger than the maximum allowed of a pool (num_coins). This could lead to users losing tokens or unexpected behaviours.
Recommendation
Validate that the number of assets sent is at most num_coins.
Status
Addressed in #8b300f0.