If "Make" step is defined in Deployment settings, the default make command is overridden even if the corresponding field is left empty, so that deployment can't be executed

Compile output:

16:14:57: Running steps for project untitled...
16:14:57: Configuration unchanged, skipping qmake step.
16:14:57: Starting: "C:\Qt\Qt5.7.0_mingw\Tools\mingw530_32\bin\mingw32-make.exe"
C:/Qt/Qt5.7.0_mingw/Tools/mingw530_32/bin/mingw32-make -f Makefile.Debug
mingw32-make[1]: Entering directory 'D:/devel/temp/build-untitled-Qt_5_7_0_mingw530_32-Debug'
mingw32-make[1]: Nothing to be done for 'first'.
mingw32-make[1]: Leaving directory 'D:/devel/temp/build-untitled-Qt_5_7_0_mingw530_32-Debug'
16:14:57: The process "C:\Qt\Qt5.7.0_mingw\Tools\mingw530_32\bin\mingw32-make.exe" exited normally.
16:14:57: Could not start process "" install
Error while building/deploying project untitled (kit: Qt 5.7.0 (mingw530_32))
When executing step "Make"
16:14:57: Elapsed time: 00:00.

Steps to reproduce:
1. Create a new project
2. Go to Projects -> Run
3. Add deploy step -> Make
4. Enter "install" in Make arguments
5. Build & deploy

Workaround:
1. Enter actual path to "make" in the override field