user109258: I had one strange situation. I created payment transaction, broadcasted it but electrum couldn't execute request due timeout, network weren't accessible. Then after 10 minutes I created one more transaction, broadcasted and  gone two transactions to the network  old and new one, but I expected only one new transaction to go out. How to avoid such situations? Why did it do that?

user13866: 
How to avoid such situations?

You should be able to view the status of your first transaction in the history tab in Electrum. You can right click on a transaction to get some options to affect that transaction.
If using the Electrum daemon and command line you can use the electrum history command.
I suspect if you had seen a pending transaction, you wouldn't have created a duplicate.

Why did it do that?

I guess it held onto the first transaction until the network became available and then sent it - that would usually be the most useful and helpful approach for a wallet.

109258: <p>I had one strange situation. I created payment transaction, broadcasted it but electrum couldn't execute request due timeout, network weren't accessible. Then after 10 minutes I created one more transaction, broadcasted and  gone two transactions to the network  old and new one, but I expected only one new transaction to go out. How to avoid such situations? Why did it do that?</p>
 13866: <blockquote>
<p><strong>How to avoid such situations?</strong></p>
</blockquote>
<p>You should be able to view the status of your first transaction in the <code>history</code> tab in Electrum. You can right click on a transaction to get some options to affect that transaction.</p>
<p>If using the Electrum daemon and command line you can use the <code>electrum history</code> command.</p>
<p>I suspect if you had seen a pending transaction, you wouldn't have created a duplicate.</p>
<blockquote>
<p><strong>Why did it do that?</strong></p>
</blockquote>
<p>I guess it held onto the first transaction until the network became available and then sent it - that would usually be the most useful and helpful approach for a wallet.</p>
