Clear 'TransactionCacheRegistry' whenever 'AccountListManager' gets

cleared. This ensures cache entries aren't 'dangling' when recreating
the account list.

Without this fix, transaction history will make extra tx api request
when insight indexer's used. This is because
'InsightApiHelper.extendChains' is updating 'TransactionCacheRegistry'
with the assumption that it refers to the same txCache object as the
wallet.

Background.js

@@ -388,12 +388,14 @@ var _typeof2 = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator
       value: !0
     });
     var r = e("lodash"),
-      i = function()
+      i = e("../services/transaction-cache-registry"),
+      a = function()
       {
         function e()
         {}
         return e.clearAccountList = function()
           {
+            i.TransactionCacheRegistry.clearCache()
             e.accountList.length = 0,
               e._loaded = !1
           },
@@ -470,9 +472,10 @@ var _typeof2 = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator
           e._loaded = !1,
           e
       }();
-    n.AccountListManager = i
+    n.AccountListManager = a
   },
   {
+    "../services/transaction-cache-registry": 121,
     lodash: 368
   }],
   3: [function(e, t, n)
@@ -11998,6 +12001,10 @@ var _typeof2 = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator
         {
           e._instances[t] ? console.log("new txCache not registered, one is already registered") : e._instances[t] = n
         },
+        e.clearCache = function()
+        {
+          for (var k in e._instances) delete e._instances[k]
+        },
         e._instances = {},
         e
     }();