QML required properties can confuse auto indentation

I was coding today and encountered a bug where QtCreator's automatic indentation of lines was shifted way over to the right, so every time I hit return to make a new line, it began each line with too much indentation.

After some experimentation, I find that this issue is triggered by the combination of two factors:

• The use of the new "required property" feature of QML
• The use of an object literal, i.e.

  let obj = {"property": value}

The indentation problem occurs for every line in the file following the object literal.

Here is a file that reproduces the issue:

import QtQuick 2.15

Item {
    id: theFoo

    required property Item theItem

    function foo() {
        theItem.foo("The issue is exacerbated if the object literal is wrapped onto the next line like so:",
                    {"foo": theFoo})
    }
}

All lines after line 10, with the object literal, will be improperly indented. If you use QtCreator's auto-indent feature over a selection or the whole file, it will also confuse the indentation.

Note that the removal of "required" from line 6 causes indentation to function normally again.

Note that I do use FakeVim, but I was able to reproduce this issue with FakeVim turned off, so I don't believe it to be related.