I probably didn't see the bug because I was using the wrong search terms. However, that bug is only reported for Windows users and I'm on Kubuntu. Still, I'll keep an eye on it, thanks!

I brought the issue up at the Libreoffice UX meeting. Seems to be a bug. The probability to get it solved increases with the number of reports (most annoying bug). But we can also wait for next release. Nightly build 4.5 does not have the issue for me.