Fix #312

Changelog.md

@@ -3,6 +3,7 @@
 Expect active development and potentially significant breaking changes in the `0.x` track. We'll try to be diligent about releasing a `1.0` version in a timely fashion (ideally within 1 or 2 months), so that we can take advantage of SemVer to signify breaking changes from that point on.
 
 ### vNext
+- Fix bug where `options` was mutated causing variables to not update appropriately. [PR #537](https://github.com/apollographql/react-apollo/pull/537)
 
 ### 1.0.0-rc.1
 - Update dependency to Apollo Client 1.0.0-rc.1 [PR #520](https://github.com/apollographql/react-apollo/pull/520)

src/graphql.tsx

@@ -340,7 +340,7 @@ export default function graphql(
             `passed to '${graphQLDisplayName}'`,
           );
         }
-        opts.variables = variables;
+        opts = { ...opts, variables };
         return opts;
       };