In Lubuntu 18.04 Bionic Beaver, daily build of today, the right default keymap isn't preselected when you select Dutch as language for the installation.
It's now "English, US" but should be: "English (US) - English (US, intl., with dead keys)".
This is a regression, at least compared with Ubuntu 16.04 and earlier (I don't know about 16.10, 17.04 and 17.10).
In Lubuntu 18.04 Bionic Beaver, daily build of today, the right default keymap isn't preselected when you select Dutch as language for the installation.
It's now "English, US" but should be: "English (US) - English (US, intl., with dead keys)".
This is a regression, at least compared with Ubuntu 16.04 and earlier (I don't know about 16.10, 17.04 and 17.10).