additional trigger of save function

src/accessories/AttachmentHelper.ttslua

@@ -127,10 +127,7 @@ function onDrop(playerColor)
   for _, bgInfo in ipairs(BACKGROUNDS) do
     if bgInfo.title == syncName then
       printToColor("Background for '" .. syncName .. "' loaded!", playerColor, "Green")
-      local customInfo = self.getCustomObject()
-      customInfo.diffuse = bgInfo.url
-      self.setCustomObject(customInfo)
-      self.reload()
+      updateImage(bgInfo.url)
       return
     end
   end
@@ -147,11 +144,17 @@ function selectImage(color)
 
   -- prompt user to select option
   Player[color].showOptionsDialog("Select image:", options, 1, function(_, optionIndex)
+    updateImage(BACKGROUNDS[optionIndex].url)
+  end)
+end
+
+-- sets background to the provided URL
+function updateImage(url)
+  self.script_state = JSON.encode({ cardsInBag, showCost, showIcons })
   local customInfo = self.getCustomObject()
-    customInfo.diffuse = BACKGROUNDS[optionIndex].url
+  customInfo.diffuse = url
   self.setCustomObject(customInfo)
   self.reload()
-  end)
 end
 
 -- only allow cards to enter, split decks and reject other objects