Fixed: When using setList with nested lists with more subitems in list and creating new item, new subitems were created more times

[roncakjakub]

Hi, I had a problem with nested list. When i populated id with data from database, it looked like this.

When I clicked "Pridaj pozíciu", it created template from first row, so at the end it looked like this.

I solved it with removing other items except first one in each list like this

Hope it will help someone struggling the same problem :)