Household got duplicated, after merging

Hello, 

I merged two households, by moving one Sim into an already occupied home. 

After finishing the merger I remained on the world map and the game acted like I'm still trying to move in my Sim somewhere. 

When I switched to the world overview I noticed that I had a played household in Brindelton Bay. Thing is: I didn't. At least I didn't intent to. 

Looking around in Brindelton bay I saw the Sim I had just moved into another household and said household. I thought the game glitches a bit and I wanted to move them "back", realizing that this household has been duplicated. 

I closed the game without saving, but unfortunately it automated after I merged the households.