P: SDK: folder:getPhotos() fails on device folders created by cloud sync

[John R Ellis]

The method folder:getPhotos() always returns the empty array on device folders created by cloud sync.  To reproduce:

1. Install this script as "lrmobile-folder-bug.lua" in the Scripts folder and restart LR:

local LrDialogs = import "LrDialogs"
local LrTasks = import "LrTasks"
local catalog = import "LrApplication".activeCatalog ()
LrTasks.startAsyncTask (function ()
    local folder = catalog:getActiveSources ()[1]
    LrDialogs.message (string.format ("%d photos in %s", 
        #folder:getPhotos (), folder:getPath ()))
    end)

2. In the Folder panel, select a device folder created by cloud sync.

3. Do the menu command Scripts > lrmobile-folder-bug.lua and observe this output:

Tested on LR 12.0.1 / Mac OS 12.6.1.

[Rikk Flohr: Photography]

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