Ckeditor5: Model: MoveOperation throws when it should not.

[scofalik]

MoveOperation#execute should be changed to not throw when you move i.e. two nodes from graveyard [ 0 ] to root [ 1, 1 ]. Right now, MoveOperation does not count that these are different roots and thinks that this is wrong operation (because you try to move node 1 into itself).

} else {
            if ( compareArrays( this.sourcePosition.getParentPath(), this.targetPosition.getParentPath() ) == 'PREFIX' ) {

to

} else if ( this.sourcePosition.root == this.targetPosition.root ) {
            if ( compareArrays( this.sourcePosition.getParentPath(), this.targetPosition.getParentPath() ) == 'PREFIX' ) {

[pjasiun]

Don't forget about tests ;)

[scofalik]

I hate you.