"Reformat File" command replaces the "of" keyword to "in" when it appears in for loops.

Whenever the Reformat File command is executed (also on save, when the Enable auto format on file save is enabled) in a QML file having a for loop with the of keyword, the of will change to in.
ie the following code:

for (var i of ["one", "two", "free"])
   console.debug(i)

will become:

for (var i in ["one", "two", "free"])
   console.debug(i)

This initiative changes the program's behavior!

Application's output before format:

qml: one
qml: two
qml: free

 and after:

qml: 0
qml: 1
qml: 2