Interestingly, it's still progressing, but not without putting your Valor or Infamy into large negative digits.
I've reset twice now, and the app shows me sitting at a good old -1,998,883/700 Valor.
At least remaining at Legend still allows you to gain Valor/Infamy.
English
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Yes, I see "-1 997 791/700" in DIM also and it will take years to get so many valor...