diff --git a/crates/multi_buffer/src/multi_buffer.rs b/crates/multi_buffer/src/multi_buffer.rs
index 6a75f4209a..9d82f6f4a2 100644
--- a/crates/multi_buffer/src/multi_buffer.rs
+++ b/crates/multi_buffer/src/multi_buffer.rs
@@ -7292,8 +7292,9 @@ pub fn randomly_mutate_multibuffer_with_diffs(
     }
 
     let excerpt_ids = multibuffer.read_with(cx, |multibuffer, _| multibuffer.excerpt_ids());
+    // TODO cover changes of base text?
     match rng.random_range(0..100) {
-        0..=14 if !buffers.is_empty() => {
+        0..=49 if !buffers.is_empty() => {
             let buffer = buffers.choose(rng).unwrap();
             buffer.update(cx, |buf, cx| {
                 let edit_count = rng.random_range(1..5);
@@ -7302,41 +7303,7 @@ pub fn randomly_mutate_multibuffer_with_diffs(
                 *needs_diff_calculation = true;
             });
         }
-        15..=19 if !excerpt_ids.is_empty() => {
-            multibuffer.update(cx, |multibuffer, cx| {
-                let ids = multibuffer.excerpt_ids();
-                let mut excerpts = HashSet::default();
-                for _ in 0..rng.random_range(0..ids.len()) {
-                    excerpts.extend(ids.choose(rng).copied());
-                }
-
-                let line_count = rng.random_range(0..5);
-
-                log::info!("Expanding excerpts by {line_count} lines");
-                multibuffer.expand_excerpts(
-                    excerpts.iter().cloned(),
-                    line_count,
-                    ExpandExcerptDirection::UpAndDown,
-                    cx,
-                );
-            });
-        }
-        // 20..=29 if !excerpt_ids.is_empty() => {
-        //     let mut ids_to_remove = vec![];
-        //     for _ in 0..rng.random_range(1..=3) {
-        //         let Some(id) = excerpt_ids.choose(rng) else {
-        //             break;
-        //         };
-        //         ids_to_remove.push(*id);
-        //     }
-        //     let snapshot = multibuffer.read_with(cx, |multibuffer, cx| multibuffer.snapshot(cx));
-        //     ids_to_remove.sort_unstable_by(|a, b| a.cmp(b, &snapshot));
-        //     drop(snapshot);
-        //     multibuffer.update(cx, |multibuffer, cx| {
-        //         multibuffer.remove_excerpts(ids_to_remove, cx)
-        //     });
-        // }
-        56..=85 if *needs_diff_calculation => {
+        50..=69 if *needs_diff_calculation => {
             multibuffer.update(cx, |multibuffer, cx| {
                 for buffer in buffers {
                     use util::rel_path::rel_path;
@@ -7368,7 +7335,25 @@ pub fn randomly_mutate_multibuffer_with_diffs(
                 *needs_diff_calculation = false;
             });
         }
-        // TODO cover changes of base text
+        70..=79 if !excerpt_ids.is_empty() => {
+            multibuffer.update(cx, |multibuffer, cx| {
+                let ids = multibuffer.excerpt_ids();
+                let mut excerpts = HashSet::default();
+                for _ in 0..rng.random_range(0..ids.len()) {
+                    excerpts.extend(ids.choose(rng).copied());
+                }
+
+                let line_count = rng.random_range(0..5);
+
+                log::info!("Expanding excerpts by {line_count} lines");
+                multibuffer.expand_excerpts(
+                    excerpts.iter().cloned(),
+                    line_count,
+                    ExpandExcerptDirection::UpAndDown,
+                    cx,
+                );
+            });
+        }
         _ => {
             let mut base_text = util::RandomCharIter::new(&mut *rng)
                 .take(256)
@@ -7383,29 +7368,6 @@ pub fn randomly_mutate_multibuffer_with_diffs(
             buffers.push(buffer);
             let buffer_handle = buffers.last().unwrap();
 
-            // let prev_excerpt_id = multibuffer
-            //     .read_with(cx, |multibuffer, cx| multibuffer.excerpt_ids())
-            //     .choose(rng)
-            //     .copied()
-            //     .unwrap_or(ExcerptId::max());
-
-            // let range = buffer_handle.read_with(cx, |buffer, _| {
-            //     let end_row = rng.random_range(0..=buffer.max_point().row);
-            //     let start_row = rng.random_range(0..=end_row);
-            //     let end_ix = buffer.point_to_offset(Point::new(end_row, 0));
-            //     let start_ix = buffer.point_to_offset(Point::new(start_row, 0));
-
-            //     log::info!(
-            //         "Inserting excerpt for buffer {}: {:?}[{:?}] = {:?}",
-            //         buffer.remote_id(),
-            //         buffer.text(),
-            //         start_ix..end_ix,
-            //         &buffer.text()[start_ix..end_ix]
-            //     );
-
-            //     start_ix..end_ix
-            // });
-
             multibuffer.update(cx, |multibuffer, cx| {
                 let id = buffer_handle.read(cx).remote_id();
                 if multibuffer.diff_for(id).is_none() {
@@ -7417,18 +7379,6 @@ pub fn randomly_mutate_multibuffer_with_diffs(
             });
 
             *needs_diff_calculation = true;
-
-            // multibuffer.update(cx, |multibuffer, cx| {
-            //     multibuffer
-            //         .insert_excerpts_after(
-            //             prev_excerpt_id,
-            //             buffer_handle.clone(),
-            //             [ExcerptRange::new(range.clone())],
-            //             cx,
-            //         )
-            //         .pop()
-            //         .unwrap()
-            // });
         }
     }