No, I don't think a Bayesian evidence update implies confirmation bias; but your comment directly implied confirmation bias, i.e. explicitly looking for a specific piece of evidence on the basis of a different piece of evidence. That behaviour will tend to multiply the effect of any given piece of evidence, because while you're busy looking for that confirmation, you'll be less open to seeing the other side.

Ironically, the easiest way to end a sentence with a period and continue the next (after a single space) on an Android phone keyboard is to tap the space bar twice.