fix: cleaning of tokens and nano-contract registered after reload (#506)

* fix: cleaning of tokens and nano-contract registered after reload

src/reducers/reducer.js

@@ -1298,13 +1298,20 @@ export const onExceptionCaptured = (state, { payload }) => {
 };
 
 /**
- * On wallet reload, tokens data will be reloaded as well.
+ * On wallet reload, tokens and nano contract  data will be
+ * reloaded as well.
+ *
+ * Some flows can request a wallet reload such as:
+ *   - Disable wallet service
+ *   - Change network settings
+ *   - Loose network connection
  */
 export const onReloadWalletRequested = (state) => ({
   ...state,
   tokensHistory: initialState.tokensHistory,
   tokensBalance: initialState.tokensBalance,
   loadHistoryStatus: initialState.loadHistoryStatus,
+  nanoContract: initialState.nanoContract,
 });
 
 const onWalletReloading = (state) => ({