Missing reprovider queue purge on Reprovider.Strategy change

[lidel]

Version

0.35

Description

@hsanjuan noticed:

the Problem is I had [Reprovider.Strategy] "all". It did not finished providing. Stored the queue on disk. Changing the strategy keeps providing what was left.

This feels like a bug. People who cant reprovide with Reprovider.Strategy=all will not be able to benefit from alternative strategy if the node already populated the queue with everything, and there is no way to reset it.

Fix ideas

• Add ipfs routing reprovide reset and ipfs routing reprovide reset for manual purging of queues
  • Command to clean reprovider queue #10829
• Add code that detects Reprovider.Strategy change across restarts, and purge the reprovider queue once detected

[lidel]

Let's continue in #10829 which was first