Smart scan return cancelled if cancelled before stitching starts.

webapp/src/components/tabContentComponents/actionTab.vue

@@ -66,6 +66,7 @@ mode.
               submit-label=""
               :can-terminate="true"
               @completed="$emit('completed')"
+              @finished="$emit('finished')"
               @update:task-status="taskStatus = $event"
               @update:progress="progress = $event"
               @update:log="log = $event"

webapp/src/components/tabContentComponents/slideScanContent.vue

@@ -6,7 +6,7 @@
     :task-url="taskUrl"
     :task-info-title="infoPaneTitle"
     :task-info-stream="displayImageOnRight"
-    @completed="onScanCompleted"
+    @finished="onScanCompleted"
     @close-task="closeTask"
     @action-started-externally="startScanning"
   >