A bug between lazy-component and v-lazy

[sanfengliao]

Bug & Does not support on-demand import

bug: I want to use v-lazy and lazy-component to achieve such an effect: the image starts to request when the visual window is 20px (v-lazy), and the component does not mount until it enters the visual window (lazy-component), but because of v- lazy and lazy-component use the same option (preLoad), so this effect cannot be achieved(maybe this is a bug).
Does not support on-demand import: I only want to use v-lazy, but have to import useless components such as lazy-conponent lazy-image

PR

I make a pr about this a problem pr