Update a team in a popup <3

apps/participation/models.py

@@ -2,6 +2,8 @@ from django.core.validators import RegexValidator
 from django.db import models
 from django.db.models import Index
 from django.utils.crypto import get_random_string
+from django.utils.functional import lazy
+from django.utils.text import format_lazy
 from django.utils.translation import gettext_lazy as _
 
 
@@ -56,7 +58,7 @@ class Participation(models.Model):
     )
 
     problem = models.IntegerField(
-        choices=[(i, _("Problem #{problem:d}").format(problem=i)) for i in range(1, 5)],
+        choices=[(i, format_lazy(_("Problem #{problem:d}"), problem=i)) for i in range(1, 5)],
         null=True,
         default=None,
         verbose_name=_("problem number"),