如何强制Django Admin保存内联？

from django.contrib import admin

class InlineModelAdmin(admin.ModelAdmin):
    def save_related(self, request, form, formsets, change):
        super().save_related(request, form, formsets, change)
        for formset in formsets:
            instances = formset.save(commit=False)
            for instance in instances:
                instance.save()
            formset.save_m2m()

from django.contrib import admin
from .models import ParentModel, InlineModel

class InlineModelInline(admin.TabularInline):
    model = InlineModel

@admin.register(ParentModel)
class ParentModelAdmin(admin.ModelAdmin):
    inlines = [InlineModelInline]
    # 其他配置...
    
    def save_related(self, request, form, formsets, change):
        self.inline_instances = []
        return super().save_related(request, form, formsets, change)