[Feature]:Contain invalid data flags in returned data of load-function, so client know when others load-function should reload.

[WangLarry]

What is the new or updated feature that you are suggesting?

returned data of load-function contain a flags,
for examples {..., __invalidLoaders: ['route1', 'route2'..]}
client reload these data-loader

Why should this feature be included?

client is hard to know data logic, but server know, so we can tell client directly.