fixed code so it works for task list in project view

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

frontend/src/routes/project/View.svelte

@@ -111,11 +111,7 @@
             show_closed:project.show_closed,
             render: false
         }
-        const resp = await fetch(url,{
-            credentials : 'include',
-            method      : 'POST',
-            body        : JSON.stringify(data)
-        });
+        const resp = await post(url,data);
         if (resp.ok){
             tasks              = {};
             est_time.sum = 0;

frontend/src/routes/task/ListTask.svelte

@@ -80,7 +80,8 @@
         const url  = api('task/list');
         const data = {
             parent_task_id : +task.id,
-            show_closed    : show_closed
+            show_closed    : show_closed,
+            render         : false
         };
         if (task.show_closed) data.show_closed = true;
         const resp = await post(url,data);

task/src/main/java/de/srsoftware/umbrella/task/TaskModule.java

@@ -488,11 +488,13 @@ public class TaskModule extends BaseHandler implements TaskService {
 			projectTasks = addTags(projectTasks, tags);
 			return sendContent(ex, mapTasks(projectTasks, render));
 		}
-		if (isSet(parentTaskId)) return sendContent(ex, mapValues(taskDb.listChildrenOf(parentTaskId, user, showClosed)));
+		Map<Long, Task> tasks;
+		if (!isSet(parentTaskId)) {
 			var taskIds = json.has(IDS) && json.get(IDS) instanceof JSONArray ids ? ids.toList().stream().map(Object::toString).map(Long::parseLong).toList() : null;
-		var tasks = taskDb.load(taskIds);
-		if (isSet(taskIds)) return sendContent(ex, mapTasks(tasks,render));
-		return sendEmptyResponse(HTTP_NOT_IMPLEMENTED, ex);
+			if (!isSet(taskIds)) return sendEmptyResponse(HTTP_NOT_IMPLEMENTED,ex);
+			tasks = taskDb.load(taskIds);
+		} else tasks = taskDb.listChildrenOf(parentTaskId,user,showClosed);
+		return sendContent(ex, mapTasks(tasks,render));
 	}
 
 	private Map<Long, Task> addTags(Map<Long, Task> taskList, Map<Long, ? extends Collection<String>> tags) {