Created attachment 196444 [details]
file with database range to reproduce the sorting problem

Open attached document. It has a database range.
Set cursor to a data cell.
Menu Data > Define...
You get the "Define Database Range" dialog and the database range "myData" should be preselected.
Open the "Options" section.
Check "Contains totals row".
Click on "Modify" button.
OK

[You need to do the above because of bug 162963.]

Menu > Data > Select Range. Use "myData". OK.
Menu > Data > Sort...
Chose 'Age' as first key.
Notice, the option "Headers: Contains column labels" is checked. But there exists no such option for "Contains totals row".
OK

Notice that the totals row has been moved by sorting.

Request:
(1) Make sorting a database range automatically detect, whether the database range has a totals row and exclude it from sorting.
(2) Add an option "Totals: Contains totals row" to the "Sort..." dialog, so that it can be used too, if the to be sorted cell area is not a defined database range.