Prevent multiple reply to addresses

README.md

@@ -10,14 +10,14 @@ Head over to the releases page and grab the latest installers or binary. https:/
 
 If you are on Debian/Ubuntu, please download the `.deb` package and install it.
 ```
-sudo dpkg -i linux-deb-zec-qt-wallet-v0.5.1.deb
+sudo dpkg -i linux-deb-zec-qt-wallet-v0.5.2.deb
 sudo apt install -f
 ```
 
 Or you can download and run the binaries directly.
 ```
-tar -xvf zec-qt-wallet-v0.5.1.tar.gz
-./zec-qt-wallet-v0.5.1/zec-qt-wallet
+tar -xvf zec-qt-wallet-v0.5.2.tar.gz
+./zec-qt-wallet-v0.5.2/zec-qt-wallet
 ```
 
 ### Windows

src/sendtab.cpp

@@ -301,6 +301,10 @@ void MainWindow::memoButtonClicked(int number) {
             if (replyTo.isEmpty())
                 return;
         }
+        auto curText = memoDialog.memoTxt->toPlainText();
+        if (curText.endsWith(replyTo))
+            return;
+
         memoDialog.memoTxt->setPlainText(memoDialog.memoTxt->toPlainText() + 
             "\n" + tr("Reply to") + ":\n" + replyTo);