Merge PR #2828 into 16.0

Signed-off-by thomaspaulb

dbfilter_from_header/override.py

@@ -13,11 +13,13 @@ db_filter_org = http.db_filter
 
 
 def db_filter(dbs, host=None):
-    dbs = db_filter_org(dbs, host)
+    dbs_orig = db_filter_org(dbs, host)
     httprequest = http.request.httprequest
     db_filter_hdr = httprequest.environ.get("HTTP_X_ODOO_DBFILTER")
     if db_filter_hdr:
         dbs = [db for db in dbs if re.match(db_filter_hdr, db)]
+    else:
+        dbs = dbs_orig
     return dbs