Proposal list for seam tag attributes have no enumeration values

Seam 1.2 tags documentation http://docs.jboss.com/seam/1.2.1.GA/reference/en/html/controls.html, Seam 2.0 tags documentation http://docs.jboss.com/seam/2.0.0.GA/reference/en/html/controls.html#controls.tags.

s:selectItems@disabled - true/false
s:selectItems@hideNoSelectionLabel - true/false
s:transformImageSize@maintainRatio - true/false
s:transformImageType@contentType - image/jpeg and image/png
s:cache@enabled - true/false
s:link@disabled - true/false
s:link@propagation - begin/join/nest/none/end
s:button@disabled - true/false
s:button@propagation - begin/join/nest/none/end
s:conversationPropagation@propagation - begin/join/nest/none/end
s:fileUpload@contentType - well known content types can be proposed as text/html, text/xml, images/png and etc.