[IMP] use qweb syntax

beesdoo_easy_my_coop/views/subscription_templates.xml

@@ -8,18 +8,18 @@
              name="Become Cooperator (in beesdoo_easy_my_coop)"
              inherit_id="easy_my_coop_website.becomecooperator">
 		<xpath expr="//div[@id='data_policy_approved']" position="before">
-            <div id="info_session_confirmed" t-if="display_info_session"
-                 t-attf-class="form-group">
+			<div id="info_session_confirmed" t-if="display_info_session" t-attf-class="form-group" >
 				<label class="col-md-3 col-sm-4 control-label" 
-                       for="info_session_confirmed">Info Session
+				       for="info_session_confirmed">
+				       		Info Session
 				</label>
 				<div class="col-md-9 col-sm-8">
 					<div class="checkbox">
 						<label for="info_session_confirmed">
 							<input type="checkbox"
 							       name="info_session_confirmed"
-                                   t-att="{'required': 'required'} if info_session_required else {}"
-                                   t-attf-value="#{data_policy_approved or ''}"/>
+								   t-att-required="info_session_required"
+								   t-att-checked="data_policy_approved"/>
 							<t t-raw="info_session_text"/>
 						</label>
 					</div>