Update has redirect examples (#25003)
Update has redirect examples (#25003)

This fixes an infinite redirect in the `has` redirect examples by ensuring not to match the redirect destination itself

## Documentation / Examples

- [x] Make sure the linting passes

zeit/next.js,flybayer/next.js,JeromeFitz/next.js,azukaru/next.js,zeit/next.js,zeit/next.js,JeromeFitz/next.js,flybayer/next.js,azukaru/next.js,flybayer/next.js,JeromeFitz/next.js,azukaru/next.js,azukaru/next.js,flybayer/next.js,JeromeFitz/next.js