qt: disallow save of LNURLp/LnAddr

electrum/gui/qt/send_tab.py

@@ -406,7 +406,7 @@ class SendTab(QWidget, MessageBoxMixin, Logger):
                 self.comment_e.setToolTip(_('Max comment length: %d characters') % fields.comment)
             self.set_field_validated(self.payto_e, validated=fields.validated)
 
-            # LNURLp amount range and comment tooltip
+            # LNURLp amount range
             if pi.type in [PaymentIdentifierType.LNURLP, PaymentIdentifierType.LNADDR] \
                     and pi.state == PaymentIdentifierState.LNURLP_FINALIZE \
                     and pi.lnurl_data.min_sendable_sat != pi.lnurl_data.max_sendable_sat:
@@ -416,7 +416,7 @@ class SendTab(QWidget, MessageBoxMixin, Logger):
                 self.amount_e.setToolTip('')
 
         self.send_button.setEnabled(bool(self.amount_e.get_amount()) and not pi.has_expired() and not pi.is_error())
-        self.save_button.setEnabled(not pi.is_error())
+        self.save_button.setEnabled(not pi.is_error() and not pi.type in [PaymentIdentifierType.LNURLP, PaymentIdentifierType.LNADDR])
 
     def _handle_payment_identifier(self):
         self.update_fields()