darktable-org/darktable — pull request #50 by fgrollier (2012-09-10 09:36:50+00:00)
Title: Fix range selection to avoid duplicated entries in selected images table

The range selection (shift-click) function is prone to create duplicate entries in the `selected_images` table, which leads to some problematic side effects, for example:
* http://darktable.org/redmine/issues/8920
* http://darktable.org/redmine/issues/8915

This PR should prevent this from happening.