Automatically update plain list checkboxes when removing nested list items?

["Rohit Patnaik" <quanticle@quanticle.net>]

Hello, 

I have a question about plain list checkboxes. If I have a plain list, as
follows:

- [ ] Item 1
  - [ ] Sub-item 1
  - [ ] Sub-item 2
  - [ ] Sub-item 3

when I complete sub-items 1 and 2, the list is as follows:

- [-] Item 1
  - [X] Sub-item 1
  - [X] Sub-item 2
  - [ ] Sub-item 3

Then, if it turns out that Sub-item 3 is unnecessary, I can delete it with C-k:

- [-] Item 1
  - [X] Sub-item 1
  - [X] Sub-item 2

However, Item 1's checkbox is in the intermediate state, even though all of its
sub-items have been completed.

I'm wondering if there's a way that I can delete Sub-item 3 and update the Item
1 checkbox all at once. Right now, I have to move the cursor back up to Item 1
and hit C-c C-c to force the checkbox to update.

Thanks,
Rohit Patnaik