From cab3f71e7a162f603d6330f30c14a2218643fd32 Mon Sep 17 00:00:00 2001
From: Irwan Fario Subastian <fariosubastian@gmail.com>
Date: Wed, 20 Jun 2018 12:29:19 +1000
Subject: [PATCH] fix removeText with Mark of length 1 (#1917)

---
 packages/slate/src/models/text.js             |  2 +-
 .../inside-a-leaf/delete-a-char-with-mark.js  | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 packages/slate/test/models/text/delete/inside-a-leaf/delete-a-char-with-mark.js

diff --git a/packages/slate/src/models/text.js b/packages/slate/src/models/text.js
index 6234afd56..4a9c077a2 100644
--- a/packages/slate/src/models/text.js
+++ b/packages/slate/src/models/text.js
@@ -589,7 +589,7 @@ class Text extends Record(DEFAULTS) {
 
     // PERF: For simple backspace, we can operate directly on the leaf
     if (length === 1) {
-      const { leaf, index, startOffset } = this.searchLeafAtOffset(start)
+      const { leaf, index, startOffset } = this.searchLeafAtOffset(start + 1)
       const offset = start - startOffset
 
       if (leaf) {
diff --git a/packages/slate/test/models/text/delete/inside-a-leaf/delete-a-char-with-mark.js b/packages/slate/test/models/text/delete/inside-a-leaf/delete-a-char-with-mark.js
new file mode 100644
index 000000000..9b820f6a9
--- /dev/null
+++ b/packages/slate/test/models/text/delete/inside-a-leaf/delete-a-char-with-mark.js
@@ -0,0 +1,19 @@
+/** @jsx h */
+
+import h from '../../../../helpers/h'
+
+export const input = (
+  <text>
+    <b>Cat </b>is <i>Cute</i>
+  </text>
+)[0]
+
+export default function(t) {
+  return t.removeText(4, 1)
+}
+
+export const output = (
+  <text>
+    <b>Cat </b>s <i>Cute</i>
+  </text>
+)[0]