试试下面的代码：

from django.contrib import admin
from models import YourModel
from django.urls import reverse
from django.utils.html import format_html

class YourModelAdmin(admin.ModelAdmin):

    def formfield_for_manytomany(
        self,
        db_field,
        request,
        **kwargs
        ):
        if db_field.name == 'matched_pros':  # Replace with your field name
            kwargs['queryset'] = \
                db_field.remote_field.model._default_manager.get_queryset()
            kwargs['widget'] = \
                admin.widgets.FilteredSelectMultiple(db_field.verbose_name,
                    False)
        return super().formfield_for_manytomany(db_field, request,
                **kwargs)

admin.site.register(YourModel, YourModelAdmin)