Creator ignores setting not to run CMake on changes to CMakeLists.txt

Qt Creator has an option

Tools->Options->Build & Run ->CMake->Autorun CMake

This option was introduced with Qt Creator 4.1. If this option is unchecked Qt Creator will not run CMake except it is excplicitly told to do so. For large project this is very important.

Qt Creator 4.2 beta ignores this option and will run CMake whenever a CMakeLists.txt file is saved. It will run CMake not only on the current project but on all other open projects as well.