Fix default json value

CTOAsYouGo/core/models.py

@@ -3,13 +3,16 @@ from django.core.validators import MinValueValidator, MaxValueValidator
 import uuid
 
 
+def default_json_value():
+    return {"details": "todo"}
+
 class Task(models.Model):
     title = models.CharField(max_length=255)
     description = models.TextField()
     price_from = models.IntegerField(validators=[MinValueValidator(0)])
     price_to = models.IntegerField(validators=[MinValueValidator(0)])
 
-    needed_information = models.JSONField(default=dict)
+    needed_information = models.JSONField(default=default_json_value)
     order = models.IntegerField(null=True)
 
     def __str__(self):