NullPointerException: Attempt to invoke virtual method `SiteModel.id` on a null

[sentry[bot]]

Sentry Issue: JETPACK-ANDROID-YN

NullPointerException: Attempt to invoke virtual method 'int org.wordpress.android.fluxc.model.SiteModel.getId()' on a null object reference
    at org.wordpress.android.ui.plugins.PluginDetailActivity.shouldHandleFluxCSitePluginEvent(PluginDetailActivity.java:1163)
    at org.wordpress.android.ui.plugins.PluginDetailActivity.onSitePluginConfigured(PluginDetailActivity.java:968)
    at java.lang.reflect.Method.invoke(Method.java)
    at org.greenrobot.eventbus.EventBus.invokeSubscriber(EventBus.java:517)
    at org.greenrobot.eventbus.EventBus.invokeSubscriber(EventBus.java:511)
...
(8 additional frame(s) were not displayed)

### Tasks

[ravishanker]

This line shouldHandleFluxCSitePluginEvent(PluginDetailActivity.java:1163), is actually 1169

[sentry[bot]]

Sentry Issue: JETPACK-ANDROID-7Y3