Bug#876390: I could reproduce and understand the bug

[Julien Puydt]

Control: retitle -1 "Doesn't declare itself correctly"
Control: reassign -1 minetest-mod-unifieddyes

Hi,

it's not a crash, but indeed I could reproduce it.

I made some experiments:
- homedecor alone will work, but some submodules will be disabled
because unifieddyes is missing ;
- unifieddyes alone works ;
- only the combination of both is having the problem.

So I think the bug is that the unifieddyes module doesn't export itself
correctly : the game knows it loaded a module "unifieddyes" and had no
error, so when the homedecor submodules say they use "unifieddyes", it
decides everything is ok. But since unifieddyes didn't do things
correctly, those submodule triggers errors when they try to do their
business.

Shorter explanation : the bug is really in minetest-mod-unifieddyes so
I'm reassigning, but since it's also one of my package and in the Debian
Games Team, I'll fix it as soon as I can!

Thanks,

Snark on #debian-games