abstract mode's router.back() fails if there are 2 consecutive same routes in history stack

[rocka]

Version

3.0.2

Reproduction link

https://jsfiddle.net/Rocka/bhu5vkn8/3/

Steps to reproduce

1. Click 10. artist
2. Hit button togglePlayer
3. Click 10. artist
4. Hit button back 2 times

What is expected?

route back to /search

What is actually happening?

nothing happend, route and route-view do not change

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'cause I didn't figure out how to determine wether the route is going forward or backword, I decided to use abstract mode and traverse the router stack to find out which direction the route is going, then hit into this bug. The demo works fine if change router's mode to hash or history.

[tarunmangukiya]

Facing same issue!