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small fix to gard against an sql-error if an empty group get selected
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@ -391,7 +391,7 @@ class socalendar_ extends socalendar__
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$datetime = mktime(0,0,0,$startMonth,$startDay,$startYear) - $tz_offset;
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$user_where = ' AND (phpgw_cal_user.cal_login in (';
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if($owner_id)
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if(is_array($owner_id) && count($owner_id))
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{
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$user_where .= implode(',',$owner_id);
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}
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