title: django-import-export - Export one to many relationship with ForeignKeyWidget - returns an empty Field
body: <p>I am trying to use the dajngo-import-export package to export data from two tables with a one to many relationship. I have a custom ForeignKeyWidget class that overrides the get_queryset method.</p>
  <p>The problem is that the export returns an empty field - no errors, just an empty field. I also tried just using the ForeignKeyWidget without the custom class/get_queryset - but I get the same result.</p>
  <p>Does anyone see what I'm doing wrong here?</p>
  <pre><code>#admin.py
  
  from import_export import resources
  from import_export.fields import Field
  from import_export.widgets import ForeignKeyWidget
  
  class SlateDocResource(resources.ModelResource):
  
      actbreaks = Field(
          column_name=&quot;actbreaks&quot;,
          attribute=&quot;id&quot;,
          widget=ActBreaksForeignKeyWidget(ActTimecodes, &quot;slatedoc_id&quot;),
      )
  
  class Meta:
      model = SlateDoc
      fields = [
          &quot;actbreaks&quot;,
      ]
  
  
  class ActBreaksForeignKeyWidget(ForeignKeyWidget):
      def get_queryset(self, value, row, *args, **kwargs):
          qs = ActTimecodes.objects.filter(slatedoc_id=self.pk)
          print(qs.values())
          return qs
  </code></pre>
  <hr />
  <pre><code>#models.py
  
  class SlateDoc(models.Model):
  
      #primary Model - fields not listed here.
  
  
  class ActTimecodes(models.Model):
      #Secondary model - every slatedoc can have multiple instances of ActTimecodes
  
      slatedoc = models.ForeignKey(
                SlateDoc, 
                on_delete=models.CASCADE, 
               related_name=&quot;acts&quot;
              )
      act_number = models.IntegerField(verbose_name=&quot;Act&quot;, default=1)
      tc_in = models.CharField(max_length=11, default=&quot;00:00:00:00&quot;)
      tc_out = models.CharField(max_length=11, default=&quot;00:00:00:00&quot;)
      dur = models.CharField(max_length=11, default=&quot;00:00:00:00&quot;)
  
      objects = ActTimecodesQuerySet.as_manager()
  
      class Meta:
          ordering = [&quot;act_number&quot;, &quot;tc_in&quot;, &quot;tc_out&quot;]
  </code></pre>
  <hr />
  <pre><code>#version info
  
  &quot;python_version&quot;: { &quot;version&quot;: ==3.10&quot; }
  
  &quot;django&quot;: { &quot;version&quot;: &quot;==4.1.1&quot; },
  
  &quot;django-import-export&quot;: { &quot;version&quot;: &quot;==2.8.0&quot;},
  </code></pre>