fix

Author: Ambrozy

packages/devextreme/js/__internal/scheduler/view_model/generate_view_model/m_settings_generator.ts

@@ -344,7 +344,7 @@ export class DateGeneratorBaseStrategy {
 
     gridAppointmentList.forEach((gridAppointment) => {
       const maxDate = new Date(this.dateRange[1]);
-      const { startDate, normalizedEndDate: endDateOfPart } = gridAppointment;
+      const { startDate, normalizedEndDate: endDateOfPart, savedBeforeSplit } = gridAppointment;
 
       const longStartDateParts = dateUtils.getDatesOfInterval(
         startDate,
@@ -363,6 +363,7 @@ export class DateGeneratorBaseStrategy {
             startDate: date,
             endDate,
             normalizedEndDate,
+            savedBeforeSplit,
             source: gridAppointment.source,
           };
         });

packages/devextreme/js/__internal/scheduler/view_model/generate_view_model/m_view_model_generator.ts

@@ -115,6 +115,10 @@ export class AppointmentViewModelGenerator {
             .addOffsets(appointment.startDate, [viewOffset]);
           appointment.endDate = dateUtilsTs
             .addOffsets(appointment.endDate, [viewOffset]);
+          appointment.savedBeforeSplit.startDate = dateUtilsTs
+            .addOffsets(appointment.savedBeforeSplit.startDate, [viewOffset]);
+          appointment.savedBeforeSplit.endDate = dateUtilsTs
+            .addOffsets(appointment.savedBeforeSplit.endDate, [viewOffset]);
           appointment.normalizedEndDate = dateUtilsTs
             .addOffsets(appointment.normalizedEndDate, [viewOffset]);
           processedAppointments.add(appointment);