Fixing mailnews crash (bug 258386) when hitting 'b' to go to the previous message when on the first message. r=bienvenu@nventure.com, sr=mscott@mozilla.org, a=mkaply@us.ibm.com
git-svn-id: svn://10.0.0.236/branches/AVIARY_1_0_20040515_BRANCH@161921 18797224-902f-48f8-a5cc-f745e15eee43
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@@ -4843,7 +4843,7 @@ nsresult nsMsgDBView::NavigateFromPos(nsMsgNavigationTypeValue motion, nsMsgView
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*pResultKey = m_keys.GetAt(*pResultIndex);
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break;
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case nsMsgNavigationType::previousMessage:
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*pResultIndex = (startIndex != nsMsgViewIndex_None) ? startIndex - 1 : 0;
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*pResultIndex = (startIndex != nsMsgViewIndex_None && startIndex > 0) ? startIndex - 1 : 0;
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*pResultKey = m_keys.GetAt(*pResultIndex);
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break;
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case nsMsgNavigationType::lastMessage:
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