STR: (Win7_64, Nightly 43, 32bit, ID 20150907030206, new profile, safe mode) 1. Launch Nightly with new profile 2. Open https://github.com 3. Click magnifier in search bar 4. Click "Add Github" Result: Suggestions box disappears for 0.1 second and then appears again, with the new search engine button. Expectations: It should not hide for 0.1 second, and just add the search engine button.
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