Predictive text is not committed when writing in a QLineEdit

The selected predictive text is not committed to the QLineEdit, have seen two different outcomes:

• "And" -> choosing "Anderson" -> "An "
• "Anderson" -> choosing "Anderson" -> "AndersonAnderson"

Step by step:
1. Open demo application "Wiggly Text"
2. Remove all text in the QLineEdit
3. Select predictive mode by tapping "shift"/"#"
4. Write "And"
5. Press '*' to get the list of predicted words
6. Select "Anderson"
7. Commit using the select key