I installed a mod that un-did your mod, so to correct this...I need to run a:

/c game.player.force.technologies['<need-this-name>'].researched=false

followed by a:

/c game.player.force.technologies['<need-this-name>'].researched=true

to fix it.

What is the name associated with your research? Is it "extra-logistic-slots"?
Regards,
~B

That didn't work... Neither did 'character-logistic-slots-7'. Any suggestions?

EDIT:
/c game.player.force.technologies['extra-logistic-slots-7'].researched=false
and
/c game.player.force.technologies['extra-logistic-slots-7'].researched=true
were accepted, but I didn't back to 10 rows (60 slots).

I managed to restore my slots, by un-toggling, loading, saving, toggling and re-researching. Evidently, I had 12 rows (72 slots), not 10 (60 slots).

I do like what this "passive mod" offers, but I think that it should be more robust so that it can't be negatively "undone" by other mods.