Tested this on a lot with no lot traits; no special moodlets when eating harvestables - from the packages in build/buy mode. Added lot trait Off The Grid to the lot, made the sim eat several harvestables in a row, and they got both moodlets. Waited out the moodlet timers and then ate one harvestable; they got only one moodlet, the positive one. Waited out that moodlet timer and ate a harvestable again; they got the moodlet, the negative. Ate anoher harvestable directly, which gave them the postive moodlet, so that they now had both at the same time.
Here are the moodlets in english; as OP's is in swedish:
Btw, I just realised that the happy moodlet has a grey icon. Isn't the icon supposed to be blue-ish? Also, if I remember correctly, the icon for this happy moodlet was a broccoli before the patch, wasn't it?
You might have to take a closer look at randomWeightedLoot_OffTheGrid_ConsumeHarvestable
