triage#171 Sometimes conversation.log remains empty

indra/newview/app_settings/settings_per_account.xml

@@ -329,7 +329,7 @@
     <key>KeepConversationLogTranscripts</key>
     	<map>
       	<key>Comment</key>
-      		<string>Keep a conversation log and transcripts</string>
+      		<string>Keep a conversation log and transcripts 2 - both, 1 - logs, 0 - none</string>
       	<key>Persist</key>
       		<integer>1</integer>
       	<key>Type</key>

indra/newview/llimview.cpp

@@ -1572,6 +1572,8 @@ bool LLIMModel::logToFile(const std::string& file_name, const std::string& from,
 	}
 	else
 	{
+        // will check KeepConversationLogTranscripts on its own
+        LLConversationLog::instance().cache();
 		return false;
 	}
 }