From 9cbf564d086a14b413d27f0514aa8f11b92ec880 Mon Sep 17 00:00:00 2001
From: Nathan Vegdahl <cessen@cessen.com>
Date: Wed, 23 Jun 2021 16:54:42 -0700
Subject: [PATCH] Handle erroneously ignored case in RopeGraphemes iterator.

---
 helix-core/src/graphemes.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/helix-core/src/graphemes.rs b/helix-core/src/graphemes.rs
index af740f61e..2e6a925f2 100644
--- a/helix-core/src/graphemes.rs
+++ b/helix-core/src/graphemes.rs
@@ -207,6 +207,10 @@ impl<'a> Iterator for RopeGraphemes<'a> {
                     self.cur_chunk_start += self.cur_chunk.len();
                     self.cur_chunk = self.chunks.next().unwrap_or("");
                 }
+                Err(GraphemeIncomplete::PreContext(idx)) => {
+                    let (chunk, byte_idx, _, _) = self.text.chunk_at_byte(idx.saturating_sub(1));
+                    self.cursor.provide_context(chunk, byte_idx);
+                }
                 _ => unreachable!(),
             }
         }