Hi again. I've done some debugging and found interesting results. In my update-form, I have these input-controls (they're templated, but you get the point) | <ui:decorate template="/templates/t_form_text_entry.xhtml"> | <ui:param name="id" value="newSpaceName" /> | <ui:param name="label" value="#{messages['name']}" /> | <ui:param name="value" value="#{selectedSpaceInstance.entityData.name}" /> | <ui:param name="width" value="300px" /> | <ui:param name="required" value="true" /> | <ui:param name="validatorBean" value="#{spaceManager}" /> | <ui:param name="validatorAction" value="validateSpaceName" /> | </ui:decorate> | | <ui:decorate template="/templates/t_form_entry.xhtml"> | <ui:param name="id" value="newSpaceCompany" /> | <ui:param name="label" value="#{messages['company']}" /> | <ui:param name="required" value="true" /> | | <h:selectOneMenu id="newSpaceCompany" value="#{selectedSpaceInstance.entityData.company}" styleClass="input" style="width: 200px;" | required="true" rendered="#{not empty companyManager.possibleSpaceCompanies}"> | <s:selectItems value="#{companyManager.possibleSpaceCompanies}" var="company" label="#{company.name}" /> | <s:convertEntity /> | </h:selectOneMenu> | </ui:decorate> | They're both validated: the input box is required, and it's name is also checked for existence (#{spaceManager.validateSpaceName}). The combobox is only required. When I submit my form like this (long-running conversation, TransactionSeamPhaseListener), the data-model is updated, even when the transaction rolls back. This must be caused by the validation of the combobox, because it acts as expected when I delete the combobox-input and let the inputbox-field untouched. Could this be a bug, where <s:convertEntity/> (or <s:selectItems/> ?) updates the model, even when the transaction rolls back? b. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4052908#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...