fix: remove duplicates

internal/dvstore/query.go

@@ -125,6 +125,20 @@ func LoadTasks(h *cayley.Handle, schema *schema.Config, filters LoadTasksFilters
 		tasks = dvmodel.FilterIsolatedTasks(tasks, logger)
 	}
 
+	{ // remove duplicates
+		// FIXME: remove duplicates from the query itself
+		taskMap := map[quad.IRI]dvmodel.Task{}
+		for _, task := range tasks {
+			taskMap[task.ID] = task
+		}
+		tasks = make(dvmodel.Tasks, len(taskMap))
+		i := 0
+		for _, task := range taskMap {
+			tasks[i] = task
+			i++
+		}
+	}
+
 	sort.Slice(tasks[:], func(i, j int) bool {
 		return tasks[i].ID < tasks[j].ID
 	})

internal/dvstore/query_test.go

@@ -66,6 +66,22 @@ func TestLoadTasks(t *testing.T) {
 				assert.NoError(t, err, name)
 			}
 
+			{ // check for duplicates
+				duplicateMap := map[string]int{}
+				hasDuplicates := false
+				for _, task := range tasks {
+					if _, found := duplicateMap[string(task.ID)]; !found {
+						duplicateMap[string(task.ID)] = 0
+					} else {
+						hasDuplicates = true
+					}
+					duplicateMap[string(task.ID)]++
+				}
+				if !assert.False(t, hasDuplicates) {
+					fmt.Println(godev.PrettyJSON(duplicateMap))
+				}
+			}
+
 			g, err := ioutil.ReadFile(gp)
 			assert.NoError(t, err, name)
 			assert.Equal(t, len(string(g)), len(actual), gp)