plain QCheckBox e.g. being inserted with qtcreater cannot be rapidly clicked in a row due to a dead time of approx 500ms after being clicked.
This behaviour was not there in 5.2.2.
Steps to reproduce:
- Compile qtbug38319.zip
- Click checkbox in rapid sequence
- Note it toggles slower, reports intervals of about 250ms and higher in Qt 5.3 and generates more events (comparing to about 150ms Qt 4, 5.2.1, where it immediately toggles)