write to db if coins are not offered anymore

src/pages/tree.tsx

@@ -288,6 +288,7 @@ class DenominationList extends ImplicitStateComponent<DenominationListProps> {
     return (
       <div className="tree-item">
         <ul>
+          <li>Offered: {d.isOffered ? "yes" : "no"}</li>
           <li>Value: {prettyAmount(d.value)}</li>
           <li>Withdraw fee: {prettyAmount(d.feeWithdraw)}</li>
           <li>Refresh fee: {prettyAmount(d.feeRefresh)}</li>

src/wallet.ts

@@ -1261,6 +1261,8 @@ export class Wallet {
     await this.q()
               .putAll(Stores.denominations,
                       Object.keys(newDenoms).map((d) => newDenoms[d]))
+              .putAll(Stores.denominations,
+                      Object.keys(existingDenoms).map((d) => existingDenoms[d]))
               .finish();
     return exchangeInfo;
   }