Qt Creator does not read .profile settings

Today I noticed that after seining up fresh Ubuntu 18.04 with Qt 5.12.0 Qt creator is not reading .profile. This was suggested in  QTCREATORBUG-21404

Here is what I did try

1. Open Terminal
2. Temporarly rename ~/.bashrc to .bashrc-temp
3. Updated ~/.profile to have only single line - source "$HOME/.bashrc-temp" 
4. Open another terminal and check env variables (they are not there)
5. For test in same window I sourced ~/.profile
6. Check env variables and they are there
7. Start Qt Creator from pinned task bar and opened project. In Projects -> Build -> Build Environment and I do not see env variables from .profile/.bashrc
8. Quit running Qt Creator and open this time from terminal
9. All works. So it looks like it is working