Replace FieldName with an uuid

aleksis/apps/abi/models.py

 from django.db import models
-from django.utils.text import slugify
 from django.utils.translation import gettext as _
 
 from jsonstore import fields
@@ -56,17 +55,17 @@ class Profile(ExtensibleModel):
         verbose_name_plural = _("Personal profiles")
 
 class AdditionalProfileField(ExtensibleModel):
-    name = models.CharField(max_length=255, help_text=_("Warning! This field can't be edited after creation!"))
+    name = models.CharField(max_length=255)
+    field_name_field = models.UUIDField(editable=False)
 
     @property
     def field_name(self):
-        return "abi_" + slugify(self.name).replace("-", "_")
+        return "abi_" + slugify(self.field_name_field).replace("-", "_")
 
     def __str__(self):
         return self.name
 
     def save(self, *args, **kwargs):
-        if self.pk is None:
         super().save(*args, **kwargs)
 
         from .model_extensions import update_profile_fields # noqa