What is the purpose of "Don't code sign" value in XCode -> Build Settings -> Code Signing?

Question

I found a code signing property "Don't Code Sign" in the XCode -> Build Settings -> Code Signing. When and where we should use this?. What does this mean for a device which is properly added to the developer portal(with proper developer certificate)?.

Answer 1

The app we built was being delivered to the client unsigned because they then used the local app store provided with the Citrix solution to sign & host the app for their enterprise.

If we signed the app, the Citrix couldn't import it and add a signature of it's own (supposedly... I still find this hard to believe), so the client insisted that the app is NOT signed.