Title sort not consistent between "Sort By" field or clicking the column

Sorting a Page Macro Report by the "title" of the report does not provide a consistent result. I have a set of pages with properties that I wanted rolled up to a Report. These pages are documenting Release information and their titles have version number notation in them:

• Release 7.10.1
• Release 11.9
• Release 11.10
• Release 12.2
• Release 14.0

If I do not set a "Sort By" value in the Report macro, then I get a random result (because of last edited by date). If I click on the header column in the Report (while viewing the page), then this sorts as expected (per the list above). But if I set the "Sort By" value to "title" (which I believe is the way to sort by the titles of the pages, then I get them in true alphabetical order (see below), which is different than if I click on the column. I would expect that clicking the columns or setting a sort by field would result in the same result (and I prefer the mechanism that clicking the column has).

True alphabetical order

• Release 11.10
• Release 11.9
• Release 12.2
• Release 14.0
• Release 7.10.1