QComboBox disabled w/ text-decoration qss property

A QComboBox does not apply the text-decoration qss property when disabled.

QComboBox {
color: red;
text-decoration: underline;
}

QComboBox:disabled {
color: blue;
text-decoration: line-through;
}

The QComboBox will have underlined red text when enabled, but underlined blue text when disabled, instead of blue text with a strike-through.