QML Button StyleItem warning

Having a QML Button present results in two prints of the following warning code in the run output:

QML Button: (StyleItem) implicit width is smaller than minimum width!

There does not seem to be any effect on the application itself and even a Button with no contents or properties defined causes the warning code.

Issue is not present in 6.2 or 6.3

Simply run the attached project, console should print out the following:

qrc:/qt-project.org/imports/QtQuick/Controls/Windows/Button.qml:19:5: QML Button: (StyleItem) implicit width is smaller than minimum width!
qrc:/qt-project.org/imports/QtQuick/Controls/Windows/Button.qml:19:5: QML Button: (StyleItem) implicit width is smaller than minimum width!