ICEFaces validation and required="true"

Today I found out the following about ICEFaces 1.8.2 validation:

• required="true" does not work whenever a partial submit is sent (e.g. by an user selecting a date with an ice:selectInputDate)
• as a consequence empty fields which have required="true" set just don't throw an validation error
• other validators trigger correctly
  
• this behaviour is even more problematic because in subsequent form submits (partial or complete ones) the required="true" behaviour does not come back, so it's possible to send the form without filling out the fields which are marked as required="true"

It seems like the only way out of this is to use custom validation in the submit action...that's no good news as it makes the built in validation quiet useless.

Thanks for comments and work arounds or clarifications.