X-Git-Url: https://git.openstreetmap.org./osqa.git/blobdiff_plain/32509c7ba5495ee0b0e42b0343cbd2a6125532cd..981f2713a5caa510f596a089f78579f5ed317bd5:/forum/models/tag.py

diff --git a/forum/models/tag.py b/forum/models/tag.py
index 73b1e30..791636f 100644
--- a/forum/models/tag.py
+++ b/forum/models/tag.py
@@ -32,10 +32,12 @@ class Tag(BaseModel):
         return force_unicode(self.name)
 
     def add_to_usage_count(self, value):
-        if self.used_count + value < 0:
+        if int(self.used_count + value) < 0:
             self.used_count = 0
         else:
-            self.used_count = models.F('used_count') + value
+            self.used_count += value
+
+        self.save()
 
     def cache_key(self):
         return self._generate_cache_key(Tag.safe_cache_name(self.name))