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Fix longstanding error in _bt_search(): should moveright at top of loop not
bottom. Otherwise we fail to moveright when the root page was split whilewe were "in flight" to it. This is not a significant problem when the rootis above the leaf level, but if the root was also a leaf (ie, a single-pageindex just got split) we may return the wrong leaf page to the caller,resulting in failure to find a key that is in fact present. Bug has existedat least since 7.1, probably forever.1 parent5e3c09a commit892a51c
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