Update changelog

CHANGELOG.rst

@@ -21,7 +21,7 @@ Fixed
 * PDFs generated in background didn't contain logo or site title.
 * Admins were redirected to their user preferences
   while they wanted to edit the preferences of another user.
-* Place of birth was not correctly shown in the person detail view
+* Some CharFields were using NULL values in database when field is empty
 
 Changed
 ~~~~~~~

aleksis/core/migrations/0028_default_value_place_of_birth.py

-# Generated by Django 3.2.10 on 2021-12-15 20:00
+# Generated by Django 3.2.10 on 2021-12-15 21:10
 
 from django.db import migrations, models
 
@@ -10,18 +10,6 @@ class Migration(migrations.Migration):
     ]
 
     operations = [
-        migrations.AlterField(
-            model_name='person',
-            name='place_of_birth',
-            field=models.CharField(blank=True, default='', max_length=255, verbose_name='Place of birth'),
-            preserve_default=False,
-        ),
-        migrations.AlterField(
-            model_name='person',
-            name='short_name',
-            field=models.CharField(blank=True, default='', max_length=255, verbose_name='Short name'),
-            preserve_default=False,
-        ),
         migrations.AlterField(
             model_name='group',
             name='short_name',
@@ -31,7 +19,13 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='oauthapplication',
             name='authorization_grant_type',
-            field=models.CharField(blank=True, choices=[('authorization-code', 'Authorization code'), ('implicit', 'Implicit'), ('password', 'Resource owner password-based'), ('client-creden
+            field=models.CharField(blank=True, choices=[('authorization-code', 'Authorization code'), ('implicit', 'Implicit'), ('password', 'Resource owner password-based'), ('client-credentials', 'Client credentials'), ('openid-hybrid', 'OpenID connect hybrid')], default='', max_length=32),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='person',
+            name='place_of_birth',
+            field=models.CharField(blank=True, default='', max_length=255, verbose_name='Place of birth'),
             preserve_default=False,
         ),
     ]

aleksis/core/models.py

@@ -180,7 +180,7 @@ class Person(ExtensibleModel):
     )
 
     short_name = models.CharField(
-        verbose_name=_("Short name"), max_length=255, blank=True  # noqa
+        verbose_name=_("Short name"), max_length=255, blank=True, null=True  # noqa
     )
 
     street = models.CharField(verbose_name=_("Street"), max_length=255, blank=True)
@@ -424,7 +424,7 @@ class Group(SchoolTermRelatedExtensibleModel):
 
     name = models.CharField(verbose_name=_("Long name"), max_length=255)
     short_name = models.CharField(
-        verbose_name=_("Short name"), max_length=255, blank=True  # noqa
+        verbose_name=_("Short name"), max_length=255, blank=True, null=True  # noqa
     )
 
     members = models.ManyToManyField(