Nice catch, thanks Chris. We're not doing anything unsual here in the front-end, and given the regressing bug, I feel pretty safe in saying this is a graphics bug. We did make a change to this border recently in bug 2053381, but it's just a normal border.
Bug 2055902 Comment 2 Edit History
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Nice catch, thanks Chris. We're not doing anything unusual here in the front-end, and given the regressing bug, I feel pretty safe in saying this is a graphics bug. We did make a change to this border recently in bug 2053381, but it's just a normal border.