[tor-relays] Wrong "first seen" flag for bridges at metrics.torproject.org

Hi together,

I have an issue regarding the "first seen" flag at metrics.torproject.org: It is definitely wrong for my two bridges - both dates are much too close in the past.

For one of the bridges, it seems to correspond to the last signing key renewal, for the other bridge, it seems to correspond to the penultimate signing key renewal.

Has anyone observed similar behavior for its relay? (I found it meaningful to first ask here before creating an issue at [*]).

[*] https://gitlab.torproject.org/hiro/onionoo/-/issues

Kind regards, telekobold