CLion 2019.2 forces build all the way

It is impossible create new run configuration which just runs app without building it. It always runs build.
0. I build clang project from terminal. This is a big project, so I need maximum of RAM and CPU. And prefer to do it out of clion scope.
1. I open clang cmake project in clion.
2. Create new cmake application configuration, select "clang" as executable.
3. Try to run it, and in fact wait 2-3 mins, until clion finishes one more dummy build process.