Qt Creator help plugin is broken - incorrectly depends to QtWebKit now even if it is not available

Qt Creator master branch: help plugin lost conditional dependency to QtWebKit now
It was not so about 1 week ago.

There are a lot of
#if !defined(QT_NO_WEBKIT)
in src/plugins/help/helpplugin.cpp, but some changes are added without such checks.

/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp: In member function 'void Help::Internal::HelpPlugin::slotAboutToShowBackMenu()':
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1065: error: 'QWebHistory' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1065: error: 'history' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1065: error: 'class Help::Internal::HelpViewer' has no member named 'history'
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1067: error: 'QWebHistoryItem' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1067: error: template argument 1 is invalid
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1067: error: invalid type in declaration before '=' token
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1068: error: request for member 'count' in 'items', which is of non-class type 'int'
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1070: error: request for member 'at' in 'items', which is of non-class type 'int'
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp: In member function 'void Help::Internal::HelpPlugin::slotAboutToShowNextMenu()':
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1080: error: 'QWebHistory' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1080: error: 'history' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1080: error: 'class Help::Internal::HelpViewer' has no member named 'history'
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1082: error: 'QWebHistoryItem' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1082: error: template argument 1 is invalid
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1082: error: invalid type in declaration before '=' token
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1083: error: request for member 'count' in 'items', which is of non-class type 'int'
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1086: error: request for member 'at' in 'items', which is of non-class type 'int'
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp: In member function 'void Help::Internal::HelpPlugin::slotOpenActionUrl(QAction*)':
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1096: error: 'QWebHistory' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1096: error: 'history' was not declared in this scope
/home/mdn/src/qt/qt-creator/src/plugins/help/helpplugin.cpp:1096: error: 'class Help::Internal::HelpViewer' has no member named 'history'