Error messages cleanup between launches
Error bubbles, like one shown here, are still displayed when the gnome-software is closed and reopened again. In this case I got the error when I tried to install updates, I closed the software and started it again a while later when I wanted to install something. I find it very confusing as error is not related to "freshly" opened software instance and I think it would be better to clean the error after closing the Software window.
As you can see the error is still shown after I closed the software again and click directly to gnome-software search result in gnome-shell overview. Again unrelated and bit annoying, especially when those errors related to updates are shown a lot lately.
I can reproduce this with both:
gnome-shell-3.34.0-3.fc32.x86_64
gnome-software-3.30.6-2.el8.x86_64