Nope. However I try I can't reproduce it after the first time. Note that I'm only speculating that this is regressed by bug 1551598, because that seem to be the only major address bar related change that got into Nightly a build after I've updated it. I can try to reproduce with a third profile if needed but I guess the outcome will be the same.
Bug 1569948 Comment 2 Edit History
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Nope. No matter how I try, I can't reproduce it after the first time. Note that I'm only speculating that this is regressed by bug 1551598, because that seem to be the only major address bar related change that got into Nightly a build after I've updated it. I can try to reproduce with a third profile if needed but I guess the outcome will be the same.