Having swap set at "none" makes hibernating not possible.
AFAIK, no filesystem/partition sets mountpoint as "none" nor has any other besides swap an empty mountpoint at the stage where the fstab module is called.
Tests so far show this change creates a working fstab when using a swap partition.
Module descriptors are now module.desc, no configuration allowed inside.
Module config files are <modulename>.conf, installed in
share/calamares/modules.
settings.conf is read from /etc/calamares, then share/calamares, and if
running with --debug also in the current dir.
Module config files are read from /etc/calamares/modules, then
share/calamares/modules, and if running with --debug also in
src/modules/<modulename> relative to the current dir.