Doubleclicking a word inside of a QLineEdit no longer selects the word (Linux only)

Doubleclicking inside of a QLineEdit on Mac and Windows will select the whole word under the cursor.

However, on Linux (specifically Centos7), the selection only selects up to the cursor and does not select the full word.

This can be seen by installing Qt Creator 4.9.0 (I used qt-unified-linux-x64-3.1.1-online.run) on a Centos (or likely also Red Hat) machine. In Qt Creator(built using 5.12.2) you can observe the behavior in the Search bar in Welcome->Examples->Search in Examples...

I've attached a screenshot of the behavior when double-clicking the word "expect" inside Qt Creator, along with the About window for reference.

The expected behavior in the screenshot should be for the entire word "expect" to be selected, not just up to where the cursor was during the click event.

Please let me know if I can provide more details.