OO-1822: add the option to suppress the dirty form warning on close of popup

src/main/java/org/olat/core/gui/control/generic/closablewrapper/CloseableModalController.java

@@ -124,6 +124,17 @@ public class CloseableModalController extends DefaultController {
 		setInitialComponent(myContent);
 	}
 	
+	/**
+	 * Suppress the form warning on close. This can be used for selection
+	 * popup.
+	 * 
+	 */
+	public void suppressDirtyFormWarningOnClose() {
+		if(closeIcon != null) {
+			closeIcon.setSuppressDirtyFormWarning(true);
+		}
+	}
+	
 	public void setCustomCSS(String className){
 		myContent.contextPut("cssClass", className);
 	}

src/main/java/org/olat/course/nodes/members/MembersMailController.java

@@ -360,6 +360,7 @@ public class MembersMailController extends FormBasicController {
 			
 			String title = translate("select.members");
 			cmc = new CloseableModalController(getWindowControl(), translate("close"), selectMemberCtrl.getInitialComponent(), true, title);
+			cmc.suppressDirtyFormWarningOnClose();
 			listenTo(cmc);
 			cmc.activate();
 		}