How to continue main bullet after a nested bullet list?

I am writing a message in Gmail with bullet lists.

After I create a nested bullet list, I do not know how to return to the parent list item without creating a new main-level bullet. Something like:

* Main Item 1  - nested item 1  - nested item 2  Main Item 1 continues* Main Item 2

I tried achieving that in many ways, but "Main Item 1 continues" either becomes part of "nested item 2", or obtains a new main-level bullet as if it was a separate item.

In Google Docs, this can be easily achieved. After "nested item 2" I can just:

• Press ENTER
• Press the "Decrease Indent" button
• Press BACKSPACE

In Google Docs, the Backspace removes the bullet, but I remain in the line I started with, allowing me to write a paragraph that would be part of the previous main item bullet point. In Gmail, however, the Backspace completely removes the end-of-line, and I return back to "nested item 2".