I find this bug dangerous, as it can make critical bugs just disappear from your radar if they affect more than one project and the fix is marked resolved in the other project. Just happened with #317241, for example, as it now disappeared from all Landscape bug reports in Launchpad. Somebody not working with Landscape bugs every day would not be aware of this problem and not notice this disappearance.
I find this bug dangerous, as it can make critical bugs just disappear from your radar if they affect more than one project and the fix is marked resolved in the other project. Just happened with #317241, for example, as it now disappeared from all Landscape bug reports in Launchpad. Somebody not working with Landscape bugs every day would not be aware of this problem and not notice this disappearance.