Invalid runtimes are not marker with an error icon in BlackBerry NDK Settings option page

1) Install the BB10-runtime (e.g. using 'sdkinstall' tool that is a part of BBNDK).
2) Then start QtCreator and see that the installed BB10-runtime is listed in the BlackBerry NDK Settings options page.
3) Uninstall the BB10 outside of QtCreator (e.g. using 'sdkinstall' tool) or just delete the folder that represent BB10 runtime.
4) Start QtCreator and check the BlackBerry NDK Settings options page.

Actual behavior:
The BB10-runtime is still listed on the options page and it does not have any error icon and tooltip that would claim that the BB10-runtime is invalid. 'Clean Up' button does not remove it too.

Expected behavior:
The BB10-runtime should have the error icon and tooltip stating that the BB10-runtime is not longer valid.