Signed-off-by: OpenClaw Bot <ai-agent@topdoglabs.com>

components/gantt/BacklogView.tsx

@@ -42,6 +42,15 @@ const typeLabels: Record<string, string> = {
   plan: "📐",
 }
 
+const UNSPRINTED_SENTINELS = new Set(["null", "none", "backlog", "unassigned", "no-sprint", "no_sprint"])
+
+const normalizeSprintId = (value: string | undefined): string | undefined => {
+  if (typeof value !== "string") return undefined
+  const sprintId = value.trim()
+  if (!sprintId) return undefined
+  return UNSPRINTED_SENTINELS.has(sprintId.toLowerCase()) ? undefined : sprintId
+}
+
 interface AssignableUser {
   id: string
   name: string
@@ -296,11 +305,16 @@ export function BacklogView() {
   const otherSprints = sprints.filter((s) => s.id !== currentSprint?.id)
 
   // Get tasks by section
+  const sprintIds = new Set(sprints.map((s) => s.id))
+
   const currentSprintTasks = currentSprint
-    ? tasks.filter((t) => t.sprintId === currentSprint.id)
+    ? tasks.filter((t) => normalizeSprintId(t.sprintId) === currentSprint.id)
     : []
 
-  const backlogTasks = tasks.filter((t) => !t.sprintId)
+  const backlogTasks = tasks.filter((t) => {
+    const sprintId = normalizeSprintId(t.sprintId)
+    return !sprintId || !sprintIds.has(sprintId)
+  })
 
   // Get active task for drag overlay
   const activeTask = activeId ? tasks.find((t) => t.id === activeId) : null
@@ -319,11 +333,12 @@ export function BacklogView() {
     const overId = over.id as string
     const overTask = tasks.find((t) => t.id === overId)
 
+    const overTaskSprintId = overTask ? normalizeSprintId(overTask.sprintId) : undefined
     const destinationId = overTask
-      ? overTask.sprintId
-        ? currentSprint && overTask.sprintId === currentSprint.id
+      ? overTaskSprintId
+        ? currentSprint && overTaskSprintId === currentSprint.id
           ? "current"
-          : `sprint-${overTask.sprintId}`
+          : `sprint-${overTaskSprintId}`
         : "backlog"
       : overId
 
@@ -395,7 +410,7 @@ export function BacklogView() {
         {otherSprints
           .sort((a, b) => new Date(a.startDate).getTime() - new Date(b.startDate).getTime())
           .map((sprint) => {
-            const sprintTasks = tasks.filter((t) => t.sprintId === sprint.id)
+            const sprintTasks = tasks.filter((t) => normalizeSprintId(t.sprintId) === sprint.id)
             console.log(`Sprint ${sprint.name}: ${sprintTasks.length} tasks`, sprintTasks.map(t => t.title))
             return (
               <SectionDropZone key={sprint.id} id={`sprint-${sprint.id}`}>

stores/useTaskStore.ts

@@ -477,8 +477,18 @@ const normalizeAttachments = (value: unknown): TaskAttachment[] => {
     .filter((attachment): attachment is TaskAttachment => attachment !== null)
 }
 
+const UNSPRINTED_SENTINELS = new Set(['null', 'none', 'backlog', 'unassigned', 'no-sprint', 'no_sprint'])
+
+const normalizeSprintId = (value: unknown): string | undefined => {
+  if (typeof value !== 'string') return undefined
+  const sprintId = value.trim()
+  if (sprintId.length === 0) return undefined
+  return UNSPRINTED_SENTINELS.has(sprintId.toLowerCase()) ? undefined : sprintId
+}
+
 const normalizeTask = (task: Task): Task => ({
   ...task,
+  sprintId: normalizeSprintId(task.sprintId),
   comments: normalizeComments(task.comments),
   tags: Array.isArray(task.tags) ? task.tags.filter((tag): tag is string => typeof tag === 'string' && tag.trim().length > 0) : [],
   attachments: normalizeAttachments(task.attachments),