Comment 2 for bug 741234

Curtis and I did a fair amount of investigation today, and the cause is actually less obvious.

We replicated this problem by assigning me to a bug on qastaging.launchpad.net/gdp, which Curtis had linked to a branch. On code.qastaging.launchpad.net/gdp we confirmed that I could see the branch in the listing, but could not see the badge for the bug.

Our initial guess after investigation was the BranchBadges .isBugBadgeVisible method was reporting bad data, probably because of something in linked_bugs on the branch or in the _known_viewers cache. A test, which you can see in lp:~jcsackett/launchpad/branch-listings-private-bugs that should have failed, revealing this problem, passes.

After more investigation, we're no longer certain what the root cause is. We will continue investigating.