fix(duplicate): place duplicate outside locked container

When duplicating a block that's inside a locked loop/parallel,
the duplicate is now placed outside the container since nothing
should be added to a locked container.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/sim/stores/workflows/workflow/store.test.ts

@@ -1291,6 +1291,74 @@ describe('workflow store', () => {
         expect(blocks[duplicatedId].locked).toBeFalsy()
       }
     })
+
+    it('should place duplicate outside locked container when duplicating block inside locked loop', () => {
+      const { batchToggleLocked, duplicateBlock } = useWorkflowStore.getState()
+
+      // Create a loop with a child block
+      addBlock('loop-1', 'loop', 'My Loop', { x: 0, y: 0 }, { loopType: 'for', count: 3 })
+      addBlock(
+        'child-1',
+        'function',
+        'Child',
+        { x: 50, y: 50 },
+        { parentId: 'loop-1' },
+        'loop-1',
+        'parent'
+      )
+
+      // Lock the loop (which cascades to the child)
+      batchToggleLocked(['loop-1'])
+      expect(useWorkflowStore.getState().blocks['child-1'].locked).toBe(true)
+
+      // Duplicate the child block
+      duplicateBlock('child-1')
+
+      const { blocks } = useWorkflowStore.getState()
+      const blockIds = Object.keys(blocks)
+
+      expect(blockIds.length).toBe(3) // loop, original child, duplicate
+
+      const duplicatedId = blockIds.find((id) => id !== 'loop-1' && id !== 'child-1')
+      expect(duplicatedId).toBeDefined()
+
+      if (duplicatedId) {
+        // Duplicate should be unlocked
+        expect(blocks[duplicatedId].locked).toBe(false)
+        // Duplicate should NOT have a parentId (placed outside the locked container)
+        expect(blocks[duplicatedId].data?.parentId).toBeUndefined()
+        // Original should still be inside the loop
+        expect(blocks['child-1'].data?.parentId).toBe('loop-1')
+      }
+    })
+
+    it('should keep duplicate inside unlocked container when duplicating block inside unlocked loop', () => {
+      const { duplicateBlock } = useWorkflowStore.getState()
+
+      // Create a loop with a child block (not locked)
+      addBlock('loop-1', 'loop', 'My Loop', { x: 0, y: 0 }, { loopType: 'for', count: 3 })
+      addBlock(
+        'child-1',
+        'function',
+        'Child',
+        { x: 50, y: 50 },
+        { parentId: 'loop-1' },
+        'loop-1',
+        'parent'
+      )
+
+      // Duplicate the child block (loop is NOT locked)
+      duplicateBlock('child-1')
+
+      const { blocks } = useWorkflowStore.getState()
+      const blockIds = Object.keys(blocks)
+      const duplicatedId = blockIds.find((id) => id !== 'loop-1' && id !== 'child-1')
+
+      if (duplicatedId) {
+        // Duplicate should still be inside the loop since it's not locked
+        expect(blocks[duplicatedId].data?.parentId).toBe('loop-1')
+      }
+    })
   })
 
   describe('updateBlockName', () => {

apps/sim/stores/workflows/workflow/store.ts

@@ -563,9 +563,33 @@ export const useWorkflowStore = create<WorkflowStore>()(
         if (!block) return
 
         const newId = crypto.randomUUID()
-        const offsetPosition = {
-          x: block.position.x + DEFAULT_DUPLICATE_OFFSET.x,
-          y: block.position.y + DEFAULT_DUPLICATE_OFFSET.y,
+
+        // Check if block is inside a locked container - if so, place duplicate outside
+        const parentId = block.data?.parentId
+        const parentBlock = parentId ? get().blocks[parentId] : undefined
+        const isParentLocked = parentBlock?.locked ?? false
+
+        // If parent is locked, calculate position outside the container
+        let offsetPosition: Position
+        const newData = block.data ? { ...block.data } : undefined
+
+        if (isParentLocked && parentBlock) {
+          // Place duplicate outside the locked container (to the right of it)
+          const containerWidth = parentBlock.data?.width ?? 400
+          offsetPosition = {
+            x: parentBlock.position.x + containerWidth + 50,
+            y: parentBlock.position.y,
+          }
+          // Remove parent relationship since we're placing outside
+          if (newData) {
+            newData.parentId = undefined
+            newData.extent = undefined
+          }
+        } else {
+          offsetPosition = {
+            x: block.position.x + DEFAULT_DUPLICATE_OFFSET.x,
+            y: block.position.y + DEFAULT_DUPLICATE_OFFSET.y,
+          }
         }
 
         const newName = getUniqueBlockName(block.name, get().blocks)
@@ -594,6 +618,7 @@ export const useWorkflowStore = create<WorkflowStore>()(
               position: offsetPosition,
               subBlocks: newSubBlocks,
               locked: false,
+              data: newData,
             },
           },
           edges: [...get().edges],