[REG] Quick Item.state behavior changed from 5.14

Item.state behavior changed from 5.14.

There are 2 States("left", "right") and a bool flag(leftMode).
Qt 5.14 and 5.15 change state from "right" to "left" via empty("") state.

property bool leftMode: true

states: [
    State {
        name: "left"
        when: leftMode
    },
    State {
        name: "right"
        when: !leftMode
    }
]

How to reproduce

• qmlscene main.qml

Expected behavior(5.13 and before)

qml: state: left
qml: state: right
qml: state: left
qml: state: right
qml: state: left
qml: state: right

Actual behavior(5.14 ant 5.15)

qml: state: left
qml: state: right
qml: state:
qml: state: left
qml: state: right
qml: state:
qml: state: left