Using the configuration dialog in a KTextEditor-based application, the "Selected" color for any highlighting text style is not saved properly after making changes.

Reproducible: Always

Steps to Reproduce:
From Kate, Kwrite, Kdevelop:
1. Go to the editor configuration dialog
2. Select the "Highlighting Text Styles" tab from "Fonts & Colors" config page
3. Select any highlight language
4. Double click on the color in the "Selected" column and pick a different color than the one currently selected
5. Click on "Save" or "Apply"

Actual Results:  
The color is reverted to its previous value after hitting "Apply" or "OK".  The previous color is still used when selecting the appropriate text in the editor.

Expected Results:  
The color will be saved and reflected in the editor.

Using KTextEditor 5.3.0, with Kate and/or KDevelop, all built from source with Qt 5.3.2.  Tried on Arch Linux (using system-provided KTextEditor) as well as RHEL6 (with custom GCC, Qt5, KF5, etc built from source).  Also present with KTextEditor built from git master.

"Selected" colors from the "Default Text Styles" tab are not affected, and seem to take updates correctly.