Display of profiles with names starting with a digit not handled correctly.
There is a Pleroma account on pleroma.site with handle "7usr7local". When clicking on this users mention somewhere, the profile of somebody else is shown who happens to be the user no. 7, i.e. corresponds to the URL https://pleroma.site/users/7 while the profile of 7usr7local is shown at https://pleroma.site/users/66328.
And yes, this profile happens to be mine, but I think the problem is not related to being logged in as that user. (It shows up after logging out too)