Fixes the import error for exported data

importer/importer.py

@@ -3,6 +3,7 @@ from debiancontributors import parser
 from django.utils import timezone
 from django.conf import settings
 import django.http
+from requests.utils import requote_uri
 from .models import Submission, SubmissionLog
 from .batch import BatchImport
 from importer import serializers
@@ -178,6 +179,8 @@ class DataImporterV1:
         models.Source.import_json(data["sources"])
         log.info(f"Imported {len(data['sources'])} sources")
 
+        self.encode_contribution_urls(data["contributions"])
+
         sers = {
                 "users": serializers.UserSerializer,
                 "identifiers": serializers.IdentifierSerializer,
@@ -196,3 +199,8 @@ class DataImporterV1:
         models.AggregatedPersonContribution.recompute()
         models.AggregatedSource.recompute()
         models.AggregatedPerson.recompute()
+
+    def encode_contribution_urls(self, contributions):
+        for cont in contributions:
+            if cont["url"]:
+                cont["url"] = requote_uri(cont["url"])