    Fixes:    do not emit startupProjectChanged() if the startup project has not changed.
    Fixes:    do not emit startupProjectChanged() if the startup project
has not changed.

    Details:  saves a few cycles

dmik/qt-creator-os2,Distrotech/qtcreator,danimo/qt-creator,richardmg/qtcreator,hdweiss/qt-creator-visualizer,KDE/android-qt-creator,danimo/qt-creator,farseerri/git_code,AltarBeastiful/qt-creator,darksylinc/qt-creator,enricoros/k-qt-creator-inspector,amyvmiwei/qt-creator,farseerri/git_code,farseerri/git_code,KDE/android-qt-creator,omniacreator/qtcreator,Distrotech/qtcreator,Distrotech/qtcreator,renatofilho/QtCreator,KDAB/KDAB-Creator,malikcjm/qtcreator,pcacjr/qt-creator,duythanhphan/qt-creator,azat/qtcreator,AltarBeastiful/qt-creator,KDAB/KDAB-Creator,enricoros/k-qt-creator-inspector,Distrotech/qtcreator,AltarBeastiful/qt-creator,KDAB/KDAB-Creator,hdweiss/qt-creator-visualizer,kuba1/qtcreator,bakaiadam/collaborative_qt_creator,enricoros/k-qt-creator-inspector,darksylinc/qt-creator,ostash/qt-creator-i18n-uk,xianian/qt-creator,danimo/qt-creator,danimo/qt-creator,kuba1/qtcreator,duythanhphan/qt-creator,ostash/qt-creator-i18n-uk,syntheticpp/qt-creator,dmik/qt-creator-os2,kuba1/qtcreator,KDAB/KDAB-Creator,darksylinc/qt-creator,kuba1/qtcreator,bakaiadam/collaborative_qt_creator,omniacreator/qtcreator,danimo/qt-creator,renatofilho/QtCreator,maui-packages/qt-creator,jonnor/qt-creator,sandsmark/qtcreator-minimap,darksylinc/qt-creator,xianian/qt-creator,dmik/qt-creator-os2,amyvmiwei/qt-creator,richardmg/qtcreator,omniacreator/qtcreator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,omniacreator/qtcreator,pcacjr/qt-creator,sandsmark/qtcreator-minimap,KDE/android-qt-creator,AltarBeastiful/qt-creator,duythanhphan/qt-creator,KDE/android-qt-creator,amyvmiwei/qt-creator,enricoros/k-qt-creator-inspector,hdweiss/qt-creator-visualizer,KDE/android-qt-creator,xianian/qt-creator,omniacreator/qtcreator,malikcjm/qtcreator,yinyunqiao/qtcreator,kuba1/qtcreator,malikcjm/qtcreator,pcacjr/qt-creator,farseerri/git_code,hdweiss/qt-creator-visualizer,Distrotech/qtcreator,xianian/qt-creator,bakaiadam/collaborative_qt_creator,dmik/qt-creator-os2,bakaiadam/collaborative_qt_creator,darksylinc/qt-creator,richardmg/qtcreator,maui-packages/qt-creator,KDAB/KDAB-Creator,yinyunqiao/qtcreator,kuba1/qtcreator,ostash/qt-creator-i18n-uk,martyone/sailfish-qtcreator,malikcjm/qtcreator,azat/qtcreator,richardmg/qtcreator,enricoros/k-qt-creator-inspector,duythanhphan/qt-creator,azat/qtcreator,renatofilho/QtCreator,amyvmiwei/qt-creator,syntheticpp/qt-creator,sandsmark/qtcreator-minimap,renatofilho/QtCreator,syntheticpp/qt-creator,bakaiadam/collaborative_qt_creator,jonnor/qt-creator,Distrotech/qtcreator,kuba1/qtcreator,amyvmiwei/qt-creator,ostash/qt-creator-i18n-uk,syntheticpp/qt-creator,duythanhphan/qt-creator,omniacreator/qtcreator,jonnor/qt-creator,sandsmark/qtcreator-minimap,dmik/qt-creator-os2,martyone/sailfish-qtcreator,renatofilho/QtCreator,malikcjm/qtcreator,darksylinc/qt-creator,yinyunqiao/qtcreator,darksylinc/qt-creator,sandsmark/qtcreator-minimap,martyone/sailfish-qtcreator,KDAB/KDAB-Creator,ostash/qt-creator-i18n-uk,colede/qtcreator,ostash/qt-creator-i18n-uk,jonnor/qt-creator,AltarBeastiful/qt-creator,xianian/qt-creator,danimo/qt-creator,farseerri/git_code,colede/qtcreator,malikcjm/qtcreator,bakaiadam/collaborative_qt_creator,martyone/sailfish-qtcreator,colede/qtcreator,colede/qtcreator,colede/qtcreator,renatofilho/QtCreator,yinyunqiao/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,syntheticpp/qt-creator,pcacjr/qt-creator,amyvmiwei/qt-creator,danimo/qt-creator,duythanhphan/qt-creator,xianian/qt-creator,hdweiss/qt-creator-visualizer,farseerri/git_code,xianian/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,jonnor/qt-creator,syntheticpp/qt-creator,duythanhphan/qt-creator,pcacjr/qt-creator,omniacreator/qtcreator,richardmg/qtcreator,dmik/qt-creator-os2,sandsmark/qtcreator-minimap,pcacjr/qt-creator,maui-packages/qt-creator,farseerri/git_code,yinyunqiao/qtcreator,maui-packages/qt-creator,martyone/sailfish-qtcreator,enricoros/k-qt-creator-inspector,Distrotech/qtcreator,colede/qtcreator,ostash/qt-creator-i18n-uk,xianian/qt-creator,bakaiadam/collaborative_qt_creator,KDE/android-qt-creator,pcacjr/qt-creator,malikcjm/qtcreator,danimo/qt-creator,KDE/android-qt-creator,hdweiss/qt-creator-visualizer,colede/qtcreator,amyvmiwei/qt-creator,maui-packages/qt-creator,martyone/sailfish-qtcreator,yinyunqiao/qtcreator,darksylinc/qt-creator,azat/qtcreator,richardmg/qtcreator,azat/qtcreator,dmik/qt-creator-os2,danimo/qt-creator,yinyunqiao/qtcreator,jonnor/qt-creator,KDE/android-qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,maui-packages/qt-creator,kuba1/qtcreator,AltarBeastiful/qt-creator,enricoros/k-qt-creator-inspector,richardmg/qtcreator,azat/qtcreator,AltarBeastiful/qt-creator,syntheticpp/qt-creator