Fix #1394 and #1395 (#1396)

CHANGELOG.md

@@ -1,3 +1,7 @@
+# [7.4.6]
+- Fix #1394.
+- Fix #1395.
+
 # [7.4.5]
 - Fix #1392.
 

lib/src/models/documents/nodes/leaf.dart

@@ -74,9 +74,8 @@ abstract class Leaf extends Node {
     final remain = len - local;
     final node = _isolate(index, local);
 
-    if (remain > 0) {
-      assert(node.next != null);
-      node.next!.retain(0, remain, style);
+    if (remain > 0 && node.next != null) {
+      node.next?.retain(0, remain, style);
     }
     node.format(style);
   }
@@ -92,9 +91,8 @@ abstract class Leaf extends Node {
     target.unlink();
 
     final remain = len - local;
-    if (remain > 0) {
-      assert(next != null);
-      next!.delete(0, remain);
+    if (remain > 0 && next != null) {
+      next.delete(0, remain);
     }
 
     if (prev != null) {

lib/src/models/documents/nodes/line.dart

@@ -172,9 +172,8 @@ class Line extends Container<Leaf?> {
     }
 
     final remaining = len - local;
-    if (remaining > 0) {
-      assert(nextLine != null);
-      nextLine!.delete(0, remaining);
+    if (remaining > 0 && nextLine != null) {
+      nextLine?.delete(0, remaining);
     }
 
     if (isLFDeleted && isNotEmpty) {

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_quill
 description: A rich text editor built for the modern Android, iOS, web and desktop platforms. It is the WYSIWYG editor and a Quill component for Flutter.
-version: 7.4.5
+version: 7.4.6
 homepage: https://1o24bbs.com/c/bulletjournal/108
 repository: https://github.com/singerdmx/flutter-quill