[Mobile] Null check operator used on a null value in Line.delete(line.dart:190)

[EgorK0rshun]

UnhandledFlutterException: Null check operator used on a null value
       at flutter_quill.src.models.documents.nodes.line.dart.Line.delete(line.dart:190)
       at flutter_quill.src.models.documents.nodes.container.dart.Container.delete(container.dart:149)
       at flutter_quill.src.models.documents.nodes.container.dart.Container.delete(container.dart:149)
       at flutter_quill.src.models.documents.document.dart.Document.compose(document.dart:283)
       at flutter_quill.src.models.documents.document.dart.Document.delete(document.dart:97)
       at flutter_quill.src.models.documents.document.dart.Document.replace(document.dart:125)
       at flutter_quill.src.widgets.controller.dart.QuillController.replaceText(controller.dart:236)
       at flutter_quill.src.widgets.raw_editor.raw_editor_state_text_input_client_mixin.dart.RawEditorStateTextInputClientMixin.updateEditingValue(raw_editor_state_text_input_client_mixin.dart:192)
       at flutter.src.services.text_input.dart.TextInput._updateEditingValue(text_input.dart:2012)
       at flutter.src.services.text_input.dart.TextInput._handleTextInputInvocation(text_input.dart:1845)
       at flutter.src.services.text_input.dart.TextInput._loudlyHandleTextInputInvocation(text_input.dart:1746)
       at flutter.src.services.platform_channel.dart.MethodChannel._handleAsMethodCall(platform_channel.dart:547)
       at flutter.src.services.platform_channel.dart.MethodChannel.setMethodCallHandler.<fn>(platform_channel.dart:540)
       at flutter.src.services.binding.dart._DefaultBinaryMessenger.setMessageHandler.<fn>(binding.dart:479)
       at ui.hooks.dart._invoke2.<fn>(hooks.dart:177)
       at async.zone.dart._rootRun(zone.dart:1399)
       at async.zone.dart._CustomZone.run(zone.dart:1301)
       at async.zone.dart._CustomZone.runGuarded(zone.dart:1209)
       at ui.hooks.dart._invoke2(hooks.dart:176)
       at ui.channel_buffers.dart._ChannelCallbackRecord.invoke(channel_buffers.dart:40)
       at ui.channel_buffers.dart._Channel.push(channel_buffers.dart:130)
       at ui.channel_buffers.dart.ChannelBuffers.push(channel_buffers.dart:326)
       at ui.platform_dispatcher.dart.PlatformDispatcher._dispatchPlatformMessage(platform_dispatcher.dart:686)
       at ui.hooks.dart._dispatchPlatformMessage(hooks.dart:86)