New test for edit form that is more inclusive.

app/Http/Controllers/AccountController.php

@@ -93,8 +93,9 @@ class AccountController extends Controller
 
         // the opening balance is tricky:
         $openingBalanceAmount = null;
+
         if ($openingBalance) {
-            $transaction          = $openingBalance->transactions()->where('account_id', $account->id)->first();
+            $transaction          = $repository->getFirstTransaction($openingBalance, $account);
             $openingBalanceAmount = $transaction->amount;
         }
 

app/Repositories/Account/AccountRepository.php

@@ -48,6 +48,18 @@ class AccountRepository implements AccountRepositoryInterface
         return true;
     }
 
+    /**
+     * @param TransactionJournal $journal
+     * @param Account            $account
+     *
+     * @return Transaction
+     */
+    public function getFirstTransaction(TransactionJournal $journal, Account $account)
+    {
+
+        return $journal->transactions()->where('account_id', $account->id)->first();
+    }
+
     /**
      * @param Preference $preference
      *
@@ -170,7 +182,7 @@ class AccountRepository implements AccountRepositoryInterface
      */
     public function leftOnAccount(Account $account)
     {
-        $balance = \Steam::balance($account,null,true);
+        $balance = \Steam::balance($account, null, true);
         /** @var PiggyBank $p */
         foreach ($account->piggybanks()->get() as $p) {
             $balance -= $p->currentRelevantRep()->currentamount;

app/Repositories/Account/AccountRepositoryInterface.php

@@ -5,6 +5,7 @@ namespace FireflyIII\Repositories\Account;
 use Carbon\Carbon;
 use FireflyIII\Models\Account;
 use FireflyIII\Models\Preference;
+use FireflyIII\Models\Transaction;
 use FireflyIII\Models\TransactionJournal;
 use Illuminate\Support\Collection;
 
@@ -86,4 +87,13 @@ interface AccountRepositoryInterface
      * @return Collection
      */
     public function getSavingsAccounts();
+
+
+    /**
+     * @param TransactionJournal $journal
+     * @param Account            $account
+     *
+     * @return Transaction
+     */
+    public function getFirstTransaction(TransactionJournal $journal, Account $account);
 }

app/Repositories/Journal/JournalRepository.php

@@ -274,4 +274,6 @@ class JournalRepository implements JournalRepositoryInterface
     public function first()
     {
         return Auth::user()->transactionjournals()->orderBy('date', 'ASC')->first(['transaction_journals.*']);
-    }}
+    }
+
+}

app/Repositories/Journal/JournalRepositoryInterface.php

@@ -3,6 +3,7 @@
 namespace FireflyIII\Repositories\Journal;
 
 use FireflyIII\Models\TransactionJournal;
+use FireflyIII\Models\Transaction;
 use Illuminate\Support\Collection;
 
 /**