In our staging environment, there is a defect reported. After kubernetes updated, some Pods status become 'MatchNodeSelector'. 

But I have no idea why and how some Pods become 'MatchNodeSelector'. So I do some research 'if a Pod have a field 'nodeSelector' and doesn't have any node have this label. These Pods will become 'MatchNodeSelector'.

But I cannot reproduce it. The Pods status always becomes 'Pending', not 'MatchNodeSelector'.
So my question is that how can I make a Pod status become 'MatchNodeSelector'?