add test case for ignoring unknown restrictions

features/car/restrictions.feature

@@ -430,3 +430,27 @@ Feature: Car - Turn restrictions
             | a    | b  | ax,xy,yb,yb |
             | b    | a  | yb,xy,ax,ax |
 
+    @specific
+    Scenario: Car - Ignore unrecognized restriction
+        Given the node map
+            |   | n |   |
+            | w | j | e |
+            |   | s |   |
+
+        And the ways
+            | nodes | oneway |
+            | sj    | yes    |
+            | nj    | -1     |
+            | wj    | -1     |
+            | ej    | -1     |
+
+        And the relations
+            | type        | way:from | way:to | node:via | restriction  |
+            | restriction | sj       | wj     | j        | yield        |
+
+        When I route I should get
+            | from | to | route    |
+            | s    | w  | sj,wj,wj |
+            | s    | n  | sj,nj,nj |
+            | s    | e  | sj,ej,ej |
+

src/extractor/restriction_parser.cpp

@@ -96,10 +96,13 @@ RestrictionParser::TryParse(const osmium::Relation &relation) const
         if (value.find("only_") == 0)
         {
             is_only_restriction = true;
-        } else if (value.find("no_") == 0)
+        }
+        else if (value.find("no_") == 0)
         {
             is_only_restriction = false;
-        } else // unrecognized value type
+        }
+        else // unrecognized value type
+        {
             return {};
         }