open-in-browser with multiple dialogues forces the top dialogue to be displayed

[tsipinakis]

Newsbeuter version (copy from newsbeuter -v): Found in 2.9 but reproduced in 2.10-e468

Steps to reproduce the issue:

1. Open any feed
2. ^G to go back to the feedlist
3. Open a second feed
4. ^G to go back to the first feed
5. Press o to open an item in the browser

After the browser command returns, the second feed will be displayed instead of the first.