ControllerManagedBy builder unconditionally overrides options.Reconciler value

[Danil-Grigorev]

/kind bug

controller-runtime/pkg/builder/controller.go

Line 248 in 7e2196f

ctrlOptions.Reconciler = r

is always overriding options.Reconciler value, explicitly set in

controller-runtime/pkg/builder/controller.go

Lines 142 to 146 in 7e2196f

	// WithOptions overrides the controller options use in doController. Defaults to empty.
	func (blder *Builder) WithOptions(options controller.Options) *Builder {
	blder.ctrlOptions = options
	return blder
	}

This complicates exclusive unit testing for SetupWithManager method, and forces to use older controller.Watch implementation to pass a mocked Reconcile method, or surfacing unfinished builder.Builder structure to achieve the same goal.