Munich standardizes on Kolab for its groupware

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in linux on (#3F3)
If you've been following the trials and tribulations of German city Munich's transition from Windows to Linux, you know they've moved 15,500 desktops onto Linux. They've now taken the next step and selected a standardized groupware solution for communication: Kolab. What, you were expecting Exchange Server?
Fatal Error - sql [select reason, count(reason) as reason_count, value from comment_vote where comment_id = ? group by reason order by reason_count desc] arg [300] msg [SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'pipedot.comment_vote.value' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by] - Pipedot
Fatal Error
sql [select reason, count(reason) as reason_count, value from comment_vote where comment_id = ? group by reason order by reason_count desc] arg [300] msg [SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #3 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'pipedot.comment_vote.value' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by]