Fix display of RBF flag in tx view

static/templates/tx.html

@@ -65,7 +65,7 @@
                 <td>Fees</td>
                 <td class="data">{{formatAmount $tx.FeesSat}} {{$cs}}</td>
             </tr>{{end -}}
-            {{- if $tx.Rbf}}
+            {{- if not $tx.Confirmations}}
             <tr>
                 <td><span title="Replace by fee">RBF</span></td>
                 <td class="data">
@@ -113,4 +113,4 @@
         document.getElementById('txSpecific').innerHTML = syntaxHighlight(txSpecific);
     </script>
 </div>
-{{end}}
+{{end}}