create migration for original filename

src/documents/migrations/1023_document_original_filename.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.0.6 on 2022-07-25 06:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('documents', '1022_paperlesstask'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='document',
+            name='original_filename',
+            field=models.CharField(default=None, editable=False, help_text='The original name of the file when it was uploaded', max_length=1024, null=True, verbose_name='original filename'),
+        ),
+    ]

src/documents/models.py

@@ -214,7 +214,7 @@ class Document(models.Model):
         help_text=_("Current archive filename in storage"),
     )
 
-    original_filename = models.FilePathField(
+    original_filename = models.CharField(
         _("original filename"),
         max_length=1024,
         editable=False,