Sometimes the action log would not auto-accept deleted hunks, and I finally found a repro for this, here's an explanation of what went wrong

// Before
use crate::{Alpha, Beta};

fn keep() {
    work();
}

fn remove() {
    work();
}

fn after() {
    work();
}

// After commit
use crate::{Alpha};

fn keep() {
    work();
}

fn after() {
    work();
}

The action log may track the deletion as:

 fn keep() {
     work();
 }

-fn remove() {
-    work();
-}
-
 fn after() {
     work();
 }

But the commit diff may choose different boundaries because nearby lines repeat:

 fn keep() {
     work();
-}
-
-fn remove() {
-    work();
 }

 fn after() {
     work();
 }

Both diffs produce the same final file, but their row ranges differ. The previous logic only accepted committed edits when those row ranges matched exactly, so already-committed edits could remain marked as unaccepted.

Now we have a fast path for checking if the base_text matches exactly, which works fine in this case.

Release Notes:

• Fixed an issue where agent edits would sometimes not get auto-accepted when they were commited