Vim removes auto-indentation when breaking lines. What to do?

Question

vim

There are curly braces and there is a cursor between them. I press enter, and I see this picture:

{
        | <- Типо курсор
}

Everything is fine, the indent was automatically added. I press enter again: the cursor moved to another line, and the indents were added. Everything seems to be fine. I go back up a line and see that Vim has eaten my indentation. They were and disappeared when the line was broken. This happened in most editors that I used, but there I managed to disable this thing, but in Vim it did not. How is it disabled?

Answer 1

It turned out that everything is very simple (thanks, Englishmen)
:inoremap <Return> <Space><BS><Return>