fixed cursor when we triple click on text and type over it #4862 (#4868)

* fixed cursor when we triple click on text and type over it

* fixed

* fixed

* Add changeset

Co-authored-by: Dylan Schiemann <dylan@dojotoolkit.org>

.changeset/healthy-wasps-sit.md

@@ -0,0 +1,5 @@
+---
+'slate-react: patch
+---
+
+fixed cursor when triple clicking on text and type over it, fixes #4862

packages/slate-react/src/components/editable.tsx

@@ -483,6 +483,13 @@ export const Editable = (props: EditableProps) => {
           case 'insertFromYank':
           case 'insertReplacementText':
           case 'insertText': {
+            const { selection } = editor
+            if (selection) {
+              if (Range.isExpanded(selection)) {
+                Editor.deleteFragment(editor)
+              }
+            }
+
             if (type === 'insertFromComposition') {
               // COMPAT: in Safari, `compositionend` is dispatched after the
               // `beforeinput` for "insertFromComposition". But if we wait for it