P: SDK: The new photo:copySettings() and :pasteSettings() don't work

@Rikk Flohr: Photography, this has been fixed in the LR SDK 11.2.

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@Rikk Flohr: Photography, if the documentation was fixed, it wasn't released:

https://developer.adobe.com/console/servicesandapis 

Updates to the Adobe Photography Products were released today and contain a fix for this issue. Please install the update via your Creative Cloud Desktop App or your respective App Store. 

Note: 

You may need to refresh the Creative Cloud App for desktop software to show an update available.  ([Ctrl/Cmd]+[Alt/Opt]+ [ R ])

For Mobile downloads, it may take several days for the update to appear in your respective App Stores.

Thank you for your patience. 

"Can you check if the setting that you intend to copy is already selected?"

When I selected Exposure in Photo > Develop Settings > Copy Settings, then the script above does indeed Copy Settings.  

So this bug report is thus about documenting the behavior of photo:copySettings() and photo:pasteSettings() -- the current API reference doesn't mention that they use whatever was selected in the UI or that there should be a delay between the two calls.

Thanks for the clarifications.

copySettings API behaves as doing copy operation from UI without the dialog(with Alt/Opt key pressed), so only options/settings selected previosuly will get copied. Can you check if the setting that you intend to copy is already selected? 

"If there is a delay between copy and paste, the APIs should work as expected."

Hmm, I inserted a 5-second sleep between copySettings() and pasteSettings(), and the settings still don't get copied:

local LrDialogs = import "LrDialogs"
local LrTasks = import "LrTasks"

local catalog = import "LrApplication".activeCatalog ()

LrTasks.startAsyncTask (function ()
    local photos = catalog:getTargetPhotos ()
    if #photos ~= 2 then 
        LrDialogs.message ("Select exactly 2 photos")
        return
        end
    photos [1]:copySettings ()
    LrTasks.sleep (5)
    photos [2]:pasteSettings ()
    catalog:withWriteAccessDo ("copy/paste", function ()
        photos [1]:copySettings ()
        LrTasks.sleep (5)
        photos [2]:pasteSettings ()
        end)
    LrDialogs.message ("Finished")
    end)

I also tried invoking copySettings() and pasteSettings() from separate scripts, same negative result.

Interestingly, when I invoke the script in Develop rather than Library, LR switches to the Library module and then back to Develop.  So those methods are doing something. 

@johnrellis copySettings operation is asynchronous in nature, due to which the immediate pasteSettings call does not work as intended. If there is a delay between copy and paste, the APIs should work as expected.

Going forward, we will explicitly mark the copySettings API as async so that it does not lead to any confusion.

Thanks John.
We will investigate.

Thanks,
Sunil