gitignore templates in "Create Repository" not sorted correctly

[grokys]

The .gitignore templates in the repository creation dialog are not sorted correctly, and in addition are sometimes duplicated:

The "Recommended" templates should appear at the top, and the remaining templates should be sorted. However this does not happen and they appear in essentially random order.

In addition the templates are read from Akavache, which when refreshing the list can produce the list of templates twice, causing duplicates to appear.