Flexslider integration doesn't properly use in-code-only settings.

Problem/Motivation

It seems like the exported settings of the flexslider / picutre integration aren't properly used when using in-code-only configuration.
The settings of hook_flexslider_default_presets() and hook_default_flexslider_picture_optionset() aren't properly mashed up.
The join works when the settings are stored in the DB but not in code.

Proposed resolution

The only idea I had was to use hook_flexslider_default_presets_alter() to do the necessary mashup.

Remaining tasks

Reviews needed

User interface changes

None.)

API changes

None.