Describe the bug
Recurrent complex is unable to save fluidlogged state of blocks because it doesn't recognize fluidstates. Unsure if this should be a feature request to add support, or a bug report.

To Reproduce
Steps to reproduce the behavior:

1. Create a structure using fluidlogged blocks
2. Export it using recurrent complex
3. Generate or re-import the structure
4. Observe lack of fluidlogging

Expected behavior
generated structures preserve fluidlogged data

I prefer to only add mod support from my end for mods that no longer receive updates for 1.12. Recurrent Complex was updated recently, so support for this feature should be added from their end, to ensure it doesn't break down the line with future updates.