Compile errors not listed in issues window with cmake projects

With a cmake project, compiler errors are listed in the Compile Output window, but not the Issues window.

I see this with rc1 of QtCreator 4 under Ubuntu 14.04, using cmake 2.8.12.2

I see it even on a fairly minimal cmake project (e.g. hello world console application, and a one-line cmake file: "add_executable(main main.cpp)".
If I introduce a syntax error in the source file, I see the error in the Compile Output window, but not the Issue window.
Cmake is run with "-GCodeBlocks -Unix Makefiles".

A similar issue was raised and closed recently here (for the beta1 release):
https://bugreports.qt.io/browse/QTCREATORBUG-15673

(I commented on this but wasn't sure if that would get the issue re-opened....)