When appending iOS builds that were built for 'iPhone & iPad', for example with 'iPhone Only' setting, FileNotFoundException appears.

Steps to reproduce:
1) Create a new project.
2) Build for iOS.
3) In Player Settings, set Target Device to 'iPhone Only'.
4) Build again, appending the previous build.

When the build process is about to finish, an error appears in the Console:
FileNotFoundException: Could not find file "/Users/<username>/Downloads/tete/Temp/StagingArea/Trampoline/LaunchScreen-iPad.png".
at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) [0x00209] in /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.IO/FileStream.cs:305

Other than that, the build seems successful. This happens when selecting 'iPhone Only' as well as 'iPad Only'.

Reproduced on:
2017.1.0b1, 5.6.0f3, 5.5.0p4, 5.3.8f1

Did not reproduce:
5.2.4f1