I pasted this url into a note:

https://vote.debian.org/~secretary/gr_initcoupling/tally.txt

On cicking on the preview link, I was taken to this url instead, which in this case didn't work:

https://www.debian.org/%257Esecretary/gr_initcoupling/tally.txt

Originally reported as bug #770145 in Debian.

I can confirm that this happens. If you disable Markdown mode it works, so that's a useful hint for debugging.
Comment by sazius [id.mayfirst.org] Sat Nov 29 08:03:21 2014
A funny thing is that this bug disappears if you compile Pumpa against Qt5 instead of Qt4.
Comment by sazius [id.mayfirst.org] Tue Dec 23 13:58:49 2014
Since this bugs appears to be related the the Qt widget, and it's fixed in Qt5 - and Pumpa is going to transition to Qt5 in the future I'm going to leave it for that.
Comment by sazius [id.mayfirst.org] Wed Dec 24 10:26:39 2014
Pumpa now uses Qt 5 by default and this bug is resolved.
Comment by sjoberg.fi Sat May 2 12:22:29 2015