msi setup of Musescore 2.2.1 from rapps does not allow to create a new folder

0.4.9-RC-35-g3eb03ef

MSI-Installer of Musescore 2.2.1 from rapps

0.4.9-RC-35-g3eb03ef__msi_createNewFolder.png

Reproduction steps
-on second page of installer you can optionally choose install location
-within that dialog there is a button to create a new folder

The button has no effect, and whenever we press it, ros logs

fixme:(../../dll/win32/msi/dialog.c:4590) unhandled event L"DirectoryListNew" arg(L"0")